tag:blogger.com,1999:blog-70309637597329254222012-02-05T14:40:58.657-08:00vitecnoreply@blogger.comBlogger1931100tag:blogger.com,1999:blog-7030963759732925422.post-60576800405101524362007-06-08T20:32:00.001-07:002007-06-08T20:32:55.274-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a correct statement concerning IPv6?</p> <p>a) To show that IPv6 packets will be encapsulated in IPv4, the IPv6 protocol identifier is specified as the payload type.<br />b) The IP address size is expanded to 128 bits and a checksum is used for detecting errors in header information.<br />c) The header information has nothing equivalent to TTL (time to live) supported by IPv4, and there are no limits to the number of gateways through which data pass.<br />d) The adjacent node’s address is used as the loop back address, and it can be used for identifying a problem in case of an error.</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6057680040510152436?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com1tag:blogger.com,1999:blog-7030963759732925422.post-8220631310394964972007-06-08T20:31:00.000-07:002007-06-08T20:32:12.777-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following protocols, as a higher level protocol of IP, supports connectionless datagram communication without the functions for increasing reliability such as acknowledgement or order control.</p> <p>a) ICMP<br />b) PPP<br />c) TCP<br />d) UDP</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-822063131039496497?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-32879205254185679642007-06-08T20:30:00.002-07:002007-06-08T20:31:21.382-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following protocols is used for transmitting e-mails between mail servers on the Internet?</p> <p>a) HTTP<br />b) POP<br />c) SMTP<br />d) SNMP</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-3287920525418567964?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-84199565666220226572007-06-08T20:30:00.001-07:002007-06-08T20:30:47.268-07:00<div class="postentry"> <div class="snap_preview"><p>Of the following statements concerning network switching systems, which statement applies to the frame relay method?</p> <p>a) 53-byte fixed-length frames are used.<br />b) Variable-length frames are used and transmission error control within the network is simplified.<br />c) A store-and-forward system performs transmission error control including retrasmission between exchanges within the network.<br />d) When terminals are connected using the frame relay protocol, they can communicate using protocols other than the frame relay protocol.</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8419956566622022657?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-48515071630983114872007-06-08T20:29:00.002-07:002007-06-08T20:30:16.635-07:00<div class="postentry"> <div class="snap_preview"><p>In a system with the network configuration show below, the same size message data was sent and received between the host computer and two terminals. The turnaround time required for sending and receiving data between the host computer and terminal A was 450 milliseconds, and 700 milliseconds for terminal B. When the size of upload and download messages and the processing time required by the host computer for both terminals A and B is the same, how many milliseconds does it take for one-way transmission from terminal B to the host computer? Here, the turnaround time means the period of time beginning when the terminal starts sending data online and ending when the response data has been completely received by the terminal. The transmission time depends only on the line speed.</p> <p><img src="http://examination.files.wordpress.com/2007/02/2004-59-sw.gif" alt="2004-59-sw.gif" /><br /> a) 100<br /> b) 150<br />c) 200<br />d) 250</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-4851507163098311487?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com1tag:blogger.com,1999:blog-7030963759732925422.post-65446145117021941932007-06-08T20:29:00.001-07:002007-06-08T20:29:42.502-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a correct statement concerning 100BASE-T?</p> <p>a) The same CSMA/CD media access method as 10BASE-T is used.<br />b) Only four pairs of STP cables are available as media. UTP cables cannot be used.<br />c) The same Manchester Coding Method as 10BASE-T is used as the encoding method.<br />d) The frame structure and the error detection system are different from those 10BASE-T.</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6544614511702194193?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-81214971542681128332007-06-08T20:28:00.000-07:002007-06-08T20:29:10.827-07:00<div class="postentry"> <div class="snap_preview"><p>Of the following statements concerning wiring types for connecting nodes (control units, terminals, etc.) on a LAN, which statement describes bus-type wiring?</p> <p>a) All nodes are connected to a cable forming a ring.<br />b) All nodes are connected to the controlling node located at the center.<br />c) Several nodes are connected to the center node. Other nodes are further connected to each of the nodes, which is connected to the center node.<br />d) All nodes are connected to a single cable such as a coaxial cable.</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8121497154268112833?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-41060884954707807252007-06-08T20:27:00.002-07:002007-06-08T20:28:37.351-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a correct statement concerning the NAT function of a router for connecting to the internet?</p> <p>a) This function allows a fast display of the contents of a Web server whose IP address was stored in a cache when it was accessed previously.<br />b) This function detects specific bit patterns from IP packets during transmission.<br />c) This function allows only IP packets to be sent to specific terminals to pass.<br />d) This function performs two-way conversion between the private IP address and the global IP address.</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-4106088495470780725?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-63570773277765184562007-06-08T20:27:00.001-07:002007-06-08T20:27:50.477-07:00<div class="postentry"> <div class="snap_preview"><p>The chart below shows the output from of a transaction detail report by sales office and by customer. Of the related database tables obtained by this form, which table is in third normal form? Here, trasaction numbers are serial numbers by customer and discounts are calculated by multiplying the discount rate by product and the unit price.</p> <p>a) Customer (Customer_number, Customer_name, Customer_business_category_code, Business-category_name)<br />b) Product (Product_code, Product_name, Unit_price, Discount_rate)<br />c) Transaction (Custome_number, Total_amount, Total_discount, Consumption_tax, Same-day_transaction_amount)<br />d) Transaction details (Transaction_number, Product_code, Qty, Amount)</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6357077327776518456?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-34639315994465645382007-06-08T20:26:00.000-07:002007-06-08T20:27:04.574-07:00<div class="postentry"> <div class="snap_preview"><p>The following data model was created as part of a library reservation system. Which of the statements below is correct? Here, a pair of 1 and an asterisk shows the one-to-many cardinality and the underlined attributes in the table are primary keys.</p> <p>[Data Model of Reservation System]<br /><img src="http://examination.files.wordpress.com/2007/02/2004-70-sw.gif" alt="2004-70-sw.gif" /></p> <p>User (User_ID, User_ name, Address)<br />Reservation (User_ID, Book_title_ID, Reservation_date)<br />Book_title (Book_title_ID, Category_code, Book_name, Author)<br />Book-stocked (Book_stock_ID, Book_title_ID, Purchase_date, Lending_count)</p> <p>a) The cardinality between the book_title entity and the book_stocked entity is opposite.<br />b) It is redundant to categorize the book_title entity and the book_stocked entity separately.<br />c) The book_title entity is an abstract entity without a physical entity.<br />d) The book stocked to be lent out can be decided at the time of reservation.</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-3463931599446564538?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-83371271787571336282007-06-08T20:25:00.002-07:002007-06-08T20:26:17.981-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the SQL statements below will retrieve persons of the same name from an “Employee” table?</p> <p>Employee</p> <table style="border-collapse: collapse;" border="1" cellpadding="0" cellspacing="0"> <tbody><tr> <td valign="top">Employee number</td> <td valign="top">Name</td> <td valign="top">Date of birth</td> <td valign="top">Department</td> </tr> <tr> <td valign="top">0001</td> <td valign="top">Kenji Arai</td> <td valign="top">1950-02-04</td> <td valign="top">Sales Department</td> </tr> <tr> <td valign="top">0002</td> <td valign="top">Taro Suzuki</td> <td valign="top">1955-03-13</td> <td valign="top">Administration Department</td> </tr> <tr> <td valign="top">0003</td> <td valign="top">Hiroshi Sato</td> <td valign="top">1961-07-11</td> <td valign="top">Technical Department</td> </tr> <tr> <td valign="top">0004</td> <td valign="top">Hiroshi Tanaka</td> <td valign="top">1958-01-24</td> <td valign="top">Planning Department</td> </tr> <tr> <td valign="top">0005</td> <td valign="top">Taro Suzuki</td> <td valign="top">1948-11-09</td> <td valign="top">Sales Department</td> </tr> </tbody></table> <p>a) SELECT DISTINCT Name FROM Employee ORDER BY Name<br />b) SELECT Name, COUNT (*) FROM Employee GROUP BY Name<br />c) SELECT Name FROM Employee GROUP BY Name HAVING COUNT (*) > 1<br />d) SELECT Name FROM Employee WHERE Name = Name</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8337127178757133628?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-34910312755622436402007-06-08T20:25:00.001-07:002007-06-08T20:25:38.821-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a correct statement concerning the process privileges for objects in SQL?</p> <p>a) There are three types of privileges: INSERT, DELETE, and UPDATE.<br />b) The privileges apply only to base tables, not to views.<br />c) The REVOKE statement revokes privileges.<br />d) The COMMIT statement grants privileges.</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-3491031275562243640?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-70576912737773831392007-06-08T20:24:00.000-07:002007-06-08T20:25:05.727-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a correct statement concerning the operation of a lock used for concurrent control of transactions?</p> <p>a) A request for a shared lock will be granted if it is made while a shared lock is used.<br />b) A request for an exclusive lock will be granted if it is made while a shared lock is used.<br />c) A request for a shared lock will be granted if it is made while an exclusive lock is used<br />d) A request for an exclusive lock will be granted if it is made while an exclusive lock is used</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-7057691273777383139?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-67257438762319204832007-06-08T20:23:00.002-07:002007-06-08T20:24:20.495-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a correct statement concerning access to a database from an application program that runs the control of a TP monitor?</p> <p>a) If the SQL search result is “No Data Found,” DBMS rollback will be executed.<br />b) An application program issues a commit and rollback instruction to a TP monitor, and the TP monitor issues instructions to DBMS.<br />c) An application program determines whether to commit or roll back its transaction after confirming the issuance of a commit or rollback instruction from another application program running under the control of a TP monitor.<br />d) An application program cannot issue an instruction to start a transaction. A TP monitor determines where to start a transaction.</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6725743876231920483?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-88736907285554859302007-06-08T20:23:00.001-07:002007-06-08T20:23:47.080-07:00<div class="postentry"> <div class="snap_preview"><p>Which statement correctly describes the atomicity in ACID characteristics of a transaction?</p> <p>a) A consistent state of the database<br />b) Once a transaction is completed normally, the updated results are not lost even if a failure has occurred.<br />c) A transaction must end with its process having been completely performed or with its process having not been performed at all.<br />d) The result of multiple transactions executed concurrently is the same as when they are executed serially.</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8873690728555485930?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-45226843159784054372007-06-08T20:22:00.000-07:002007-06-08T20:23:05.735-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a correct statement concerning a cryptography system?</p> <p>a) Because common key cryptography uses different keys for both the sender and receiver, it ensures a high level of confidentiality.<br />b) Common key cryptography uses different keys for each sender and receiver, key management will become difficult as the number of senders and receivers increases.<br />c) When encrypting messages using public key cryptography , key management become easier by disclosing a decryption key<br />d) In the case of public key cryptography , the key used for signatures can be disclosed.</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-4522684315978405437?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-84268070019824668042007-06-08T20:21:00.002-07:002007-06-08T20:22:11.801-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a correct statement concerning digital signature used for e-mails?</p> <p>a) Digital signature cannot prevent an alteration of e-mail contents, but it can detect an alteration.<br />b) Digital signature can prevent an alteration of e-mail contents, but does not guarantee the confidentiality.<br />c) Digital signature guarantees the confidentiality of e-mail contents, but cannot prevent an alteration.<br />d) Digital signature guarantees the confidentiality of e-mail contents, and restores altered e-mail contents as well.</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8426807001982466804?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-47566638855756424692007-06-08T20:21:00.001-07:002007-06-08T20:21:37.047-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a correct statement concerning maintaining <em>integrity </em>as a factor in <em>information security for a payroll system</em>?</p> <p>a) A system operator changes the system configuration to reduce the processing time of the payroll system.<br />b) Pay statements are printed without fail by payday.<br />c) Unauthorized employees cannot rewrite salary data.<br />d) Unauthorized employees cannot read salary data</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-4756663885575642469?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-88237191595636755832007-06-08T20:20:00.000-07:002007-06-08T20:21:01.970-07:00<div class="postentry"> <div class="snap_preview"><p>The framework for building a security management system specified in BS 7799-2 consists of steps through below. What is the correct order of these steps?</p> <p><img src="http://examination.files.wordpress.com/2007/02/maru1.png" alt="maru1.png" /> Select and/or add management objectives and management measures to be implemented.<br /><img src="http://examination.files.wordpress.com/2007/02/maru2.png" alt="maru2.png" /> Determine the scope of the information security management system.<br /><img src="http://examination.files.wordpress.com/2007/02/maru3.png" alt="maru3.png" /> Create an implementation declaration.<br /><img src="http://examination.files.wordpress.com/2007/02/maru4.png" alt="maru4.png" /> Define security policies.<br /><img src="http://examination.files.wordpress.com/2007/02/maru5.png" alt="maru5.png" /> Conduct a risk assessment.<br /><img src="http://examination.files.wordpress.com/2007/02/maru6.png" alt="maru6.png" />Manage risks</p> <p>a) <img src="http://examination.files.wordpress.com/2007/02/maru3.png" alt="maru3.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru4.png" alt="maru4.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru2.png" alt="maru2.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru6.png" alt="maru6.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru5.png" alt="maru5.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru1.png" alt="maru1.png" /><br />b) <img src="http://examination.files.wordpress.com/2007/02/maru3.png" alt="maru3.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru4.png" alt="maru4.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru5.png" alt="maru5.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru6.png" alt="maru6.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru1.png" alt="maru1.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru2.png" alt="maru2.png" /><br />c) <img src="http://examination.files.wordpress.com/2007/02/maru4.png" alt="maru4.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru2.png" alt="maru2.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru1.png" alt="maru1.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru6.png" alt="maru6.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru5.png" alt="maru5.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru3.png" alt="maru3.png" /><br />d) <img src="http://examination.files.wordpress.com/2007/02/maru4.png" alt="maru4.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru2.png" alt="maru2.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru5.png" alt="maru5.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru6.png" alt="maru6.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru1.png" alt="maru1.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru3.png" alt="maru3.png" /></p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8823719159563675583?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-32875565147595323722007-06-08T20:19:00.000-07:002007-06-08T20:20:22.122-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following statements correctly defines UCS-2 (Unicode)?</p> <p>a) It is a code system mainly used under UNIX. It uses a single byte to represent an alphanumeric character and two bytes to represent a Chinese character.<br />b) It is a code system currently used in many personal computers. It uses a single byte to represent an alphanumeric character and two bytes to represent a Chinese character.<br />c) It is a code system that uses a single byte to represent all characters<br />d) It is a code system adaptable to coded character sets in many countries. It uses two bytes to represent all characters.</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-3287556514759532372?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-87729673396776337052007-06-07T22:41:00.003-07:002007-06-07T22:41:53.233-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is the decimal fractional number corresponding to a hexadecimal number containing fraction 3A.5C?</p> <p>a) 939/16<br />b) 3735/64<br />c) 14939/256<br />d) 14941/256</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8772967339677633705?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-82832821647427297672007-06-07T22:41:00.001-07:002007-06-07T22:41:29.465-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a correct description of radix conversion? </p> <p>a) A finite fraction in the binary representation is always a finite fraction in a decimal representation.<br />b) A finite fraction in the octal representation is not necessarily a finite fraction in the binary representation.<br />c) A finite fraction in the octal representation is not necessarily a finite fraction in the decimal representation.<br />d) A finite fraction in the decimal representation is always a finite fraction in the octal representation.</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8283282164742729767?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-91291985385875160952007-06-07T22:40:00.003-07:002007-06-07T22:40:58.021-07:00<div class="postentry"> <div class="snap_preview"><p>In case a negative number is represented as two’s complement, which of the following is an appropriate method for obtaining a numerical value whose absolute value is equal, but whose sign is different? In this example, the sign (0 for positive, 1 for negative) is the most significant bit.</p> <p>a) Invert each bit and add 1 to the result.<br />b) Invert each bit and add 2 to the result.<br />c) Invert each bit.<br />d) Change the sign bit to 1. </p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-9129198538587516095?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-71626165600213884292007-06-07T22:40:00.001-07:002007-06-07T22:40:34.471-07:00<div class="postentry"> <div class="snap_preview"><p>The results of arithmetic operations on numerical value A, which has 6 significant digits, and numerical value B, which has two significant digits, were rounded off. Which of the following is correct as an evaluation of the significant digits in the calculation results?</p> <p>a) When A+B is performed, the result has six significant digits.<br />b) When A-B is performed, the result has six significant digits.<br />c) When A×B is performed, the result has two significant digits.<br />d) When A÷B is performed, the result has three significant digits.</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-7162616560021388429?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-82965540026554841242007-06-07T22:39:00.002-07:002007-06-07T22:40:12.300-07:00<div class="postentry"> <div class="snap_preview"><p> How many multiplications are performed when the formula Y = X⁵＋aX⁴＋bX³＋cX²＋dX＋e is changed so as to minimize the number of calculations?</p> <p>a) 4<br />b) 5<br />c) 8<br />d) 9 </p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a> </p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8296554002655484124?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-57112959411958173272007-06-07T22:39:00.001-07:002007-06-07T22:39:35.744-07:00<div class="postentry"> <div class="snap_preview"><p> At a certain factory, the same products are manufactured on two independent lines A and B. Line A manufactures 60% of all the products, and line B manufactures 40%. Of the products manufactured on line A, 2% are defective, and of the products manufactured on line B, 1% are defective. When a single product manufactured at this factory was selected randomly, it turned out that this product was defective. What is the probability (percentage) that this product was manufactured on line A?</p> <p>a) 25<br />b) 40<br />c) 60<br />d) 75</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-5711295941195817327?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-68556862957873972622007-06-07T22:38:00.002-07:002007-06-07T22:39:07.026-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is the logical circuit that obtains the same results as<br /></p><table border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td>_</td> <td> _</td> <td> </td> <td>_</td> <td> </td> <td> </td> <td> </td> <td>_</td> </tr> <tr> <td>A</td> <td>.B</td> <td>+</td> <td>A</td> <td>.B</td> <td>+</td> <td>A.</td> <td>B</td> </tr> </tbody></table> <p> ? In this example, <img src="http://examination.files.wordpress.com/2007/02/swh14sa07a.png" alt="swh14sa07a.png" /> denotes a logical product (AND); <img src="http://examination.files.wordpress.com/2007/02/swh14sa07b.png" alt="swh14sa07b.png" /> denotes a logical sum (OR); <img src="http://examination.files.wordpress.com/2007/02/swh14sa07c.png" alt="swh14sa07c.png" />denotes a negative AND (NAND); and <img src="http://examination.files.wordpress.com/2007/02/swh14sa07d.png" alt="swh14sa07d.png" /> denotes a negative logical sum (NOR). </p> <p>a) <img src="http://examination.files.wordpress.com/2007/02/swh14sa07e.png" alt="swh14sa07e.png" /><br />b) <img src="http://examination.files.wordpress.com/2007/02/swh14sa07f.png" alt="swh14sa07f.png" /><br />c) <img src="http://examination.files.wordpress.com/2007/02/swh14sa07g.png" alt="swh14sa07g.png" /><br />d) <img src="http://examination.files.wordpress.com/2007/02/swh14sa07h.png" alt="swh14sa07h.png" /></p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6855686295787397262?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-80216880080351365792007-06-07T22:38:00.001-07:002007-06-07T22:38:41.836-07:00<div class="postentry"> <div class="snap_preview"><p>A code X₁X₂X₃X₄X₅X₆X₇ which consists of information bits X₁X₂X₃X₄ and redundant bits X₅X₆X₇ satisfying</p> <p>( X₁＋X₂＋X₃＋X₅ ) mod 2 ＝ 0<br />( X₁＋X₂＋X₄＋X₆ ) mod 2 ＝ 0<br />( X₂＋X₃＋X₄＋X₇ ) mod 2 ＝ 0<br /> is transmitted.</p> <p> If the received code Y₁Y₂Y₃Y₄Y₅Y₆Y₇ differs from the transmitted code by no more than one bit, then it is possible to determine the correct information bits X₁X₂X₃X₄ according to whether or not each of the following becomes zero:</p> <p>( Y₁＋Y₂＋Y₃＋Y₅ ) mod 2 ＝ 0<br />( Y₁＋Y₂＋Y₄＋Y₆ ) mod 2 ＝ 0<br />( Y₂＋Y₃＋Y₄＋Y₇ ) mod 2 ＝ 0</p> <p> If Y₁Y₂Y₃Y₄Y₅Y₆Y₇ ＝ 1100010,<br />which of the following indicates the correct information bits? In this example, a mod b denotes the remainder when a is divided by b </p> <p>a) 0100<br />b) 1000<br />c) 1100<br />d) 1101 </p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8021688008035136579?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-91999048069360165982007-06-07T22:37:00.002-07:002007-06-07T22:38:14.552-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following results is obtained when seven integers 13, 17, 15,8, 3, 10 and 20 are inserted in this sequence in an empty binary search tree, after which two integers 8 and 3 are removed in this sequence from this binary search tree?</p> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tbody><tr> <td>a) <img src="http://examination.files.wordpress.com/2007/02/swh14sa09a.png" alt="swh14sa09a.png" /></td> <td> </td> <td>b)<img src="http://examination.files.wordpress.com/2007/02/swh14sa09b1.png" alt="swh14sa09b1.png" /></td> </tr> <tr> <td>c) <img src="http://examination.files.wordpress.com/2007/02/swh14sa09c1.png" alt="swh14sa09c1.png" /></td> <td> </td> <td>d) <img src="http://examination.files.wordpress.com/2007/02/swh14sa09d.png" alt="swh14sa09d.png" /></td> </tr> </tbody></table> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a> </p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-9199904806936016598?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-65140797861885744852007-06-07T22:37:00.001-07:002007-06-07T22:37:50.547-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following queues has the shortest processing time for additions to and removals from the queue? In this example, the number of queue entries is variable, and the arrows in the diagrams denote the pointer indications</p> <p><img src="http://examination.files.wordpress.com/2007/02/stask.jpg" alt="stask.jpg" /></p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6514079786188574485?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-22053680427788971452007-06-07T22:36:00.004-07:002007-06-07T22:37:05.741-07:00<div class="postentry"> <div class="snap_preview"><p>In the graph below, the shortest distance from point A to each point is determined using the Dijkstra method. Which of the following represents the order in which the distances from point A to points B, C, and D are determined? In this example, the numbers denote the respective distances. </p> <p><img src="http://examination.files.wordpress.com/2007/02/swh14sa11a.png" alt="swh14sa11a.png" /></p> <p>a) B, C, D<br />b) B, D, C<br />c) D, B, C<br />d) D, C, B</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-2205368042778897145?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-39841692271470102092007-06-07T22:36:00.003-07:002007-06-07T22:36:43.821-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is the best representation of the trend obtained by a graph expression of the relationship between the number of pieces of data and sorting time for sorting according to the selection method?<br /><img src="http://examination.files.wordpress.com/2007/02/q12.gif" alt="q12.gif" /></p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-3984169227147010209?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-23868427224358675062007-06-07T22:36:00.001-07:002007-06-07T22:36:22.633-07:00<div class="postentry"> <div class="snap_preview"><p>The flowchart below presents the tasks involved in binary number multiplication through repeated shift operations and additions. Which of the following answers is the correct combination of processes a and b in this flowchart? In this example, multipliers and<br />multiplicands are expressed as 16 bits without signs. X, Y and Z are 32-bit registers, and logical shifting is used for shifting. </p> <p><img src="http://examination.files.wordpress.com/2007/02/q13.gif" alt="q13.gif" /></p> <table style="border-collapse: collapse;" border="1" cellpadding="5" cellspacing="0"> <tbody><tr> <td> </td> <td align="center">a</td> <td align="center">b</td> </tr> <tr> <td>a)</td> <td> Least significant bit in Y </td> <td>Shift X one bit to the left and Y one bit to<br />the right.</td> </tr> <tr> <td>b)</td> <td> Least significant bit in Y </td> <td>Shift X one bit to the right and Y one bit<br />to the left.</td> </tr> <tr> <td>c)</td> <td> Most significant bit in Y </td> <td>Shift X one bit to the left and Y one bit to<br />the right.</td> </tr> <tr> <td>d)</td> <td> Most significant bit in Y</td> <td> Shift X one bit to the right and Y one bit to<br />the left.</td> </tr> </tbody></table> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a> </p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-2386842722435867506?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-66493453342228745542007-06-07T22:35:00.003-07:002007-06-07T22:35:50.112-07:00<div class="postentry"> <div class="snap_preview"><p>There exists a function F(x, y) defined as shown below with respect to integers x, y (x>y ≧ 0). What is the value of F(1170, 231)? In this example,x mod y is the remainder when x is divided by y. </p> <table> <tbody> <tr> <td><br /></td> <td rowspan="3"><a href="http://examination.wordpress.com/2007/02/07/question-14-3/swh14sa14apng/" rel="attachment wp-att-195" title="swh14sa14a.png"><img src="http://examination.files.wordpress.com/2007/02/swh14sa14a.png" alt="swh14sa14a.png" /></a></td> <td>x（When y ＝ 0）</td> </tr> <tr> <td>　F(x，y) ＝</td> <td><br /></td> </tr> <tr> <td><br /></td> <td>F(y，x mod y)(When y ＞ 0）</td> </tr> </tbody> </table> <p>a) 2<br />b) 3<br />c) 5<br />d) 7 </p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6649345334222874554?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-45841298225898370782007-06-07T22:35:00.001-07:002007-06-07T22:35:26.675-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is the business process most suitable for study using game theory?</p> <p>a) Determining the number of entry gates at an event arena.<br />b) Analysis of factors related to hot-selling products.<br />c) Establishment of a sales strategy in a region where there are competitors.<br />d) Demand projection and establishment of a profit plan for a newly developed product.</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-4584129822589837078?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-84519382505835747642007-06-07T22:34:00.003-07:002007-06-07T22:34:57.761-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a multiprocessor processing mode used by many of today’s commercial super-parallel computers, in which instructions that vary from processor to processor are executed in parallel? </p> <p>a) CISC<br />b) MIMD<br />c) RISC<br />d) SIMD </p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8451938250583574764?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-79917736478669901012007-06-07T22:34:00.001-07:002007-06-07T22:34:33.645-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of the microprogramming control method?</p> <p>a) It is used on many RISC processors.<br />b) Functions can be added and changed just by making microprogram changes, so it is easy to add and change instructions.<br />c) Like ordinary programs, microprograms are stored in main memory, and read and used by processors.<br />d) Machine instruction processing is faster than in the case of the wired logic method.</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-7991773647866990101?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-29575923979219779672007-06-07T22:33:00.002-07:002007-06-07T22:34:09.114-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of interrupts?</p> <p>a) When a CPU receives an interrupt, it interrupts the program being executed and stores information required for resuming the program in a specific area on<em> the hard disk</em>.<br />b) <em>Application programs</em> must always detect occurrences of interrupts.<br />c) A notification of the completion of an operation from an input/output device is classified as an <em>internal interrupt</em>.<br />d) The causes of individual interrupts are given priorities for allowing occurrences of multiple interrupts.</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-2957592397921977967?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-67795257146488918442007-06-07T22:33:00.001-07:002007-06-07T22:33:43.741-07:00<div class="postentry"> <div class="snap_preview"><p>In a personal computer operating with a 200 MHz clock frequency, if the cache access time is 10 nanoseconds, the main memory access time is 70 nanoseconds, and the cache hit rate is 90%, what is the average number of clock cycles required for memory access?</p> <p>a) 2<br />b) 4<br />c) 8<br />d) 16</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6779525714648891844?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-14369864663058280092007-06-07T22:32:00.002-07:002007-06-07T22:33:18.580-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the magnetic disk devices A, B, C and D with the specifications shown in the table has the shortest time for accessing 50 Kbytes recorded on a single track? In this example, it is assumed that the access time affected by elements other than the parameters shown in the table can be ignored.</p> <table style="border-collapse: collapse;" border="1" cellpadding="5" cellspacing="0"> <tbody><tr> <td> </td> <td align="center">Disk rpms(revolutions per minute)</td> <td align="center">Average seek time (milliseconds)</td> <td align="center">Average track capacity (KBytes)</td> <td align="center">Data transfer rate to and from computer (MBps) </td> </tr> <tr> <td>a)</td> <td>5,000 </td> <td>8</td> <td>100</td> <td>10</td> </tr> <tr> <td>b)</td> <td>5,000</td> <td>10</td> <td>200</td> <td>5</td> </tr> <tr> <td>c)</td> <td>10,000</td> <td>8</td> <td>100</td> <td>5</td> </tr> <tr> <td>d)</td> <td>10,000</td> <td>10</td> <td>100</td> <td>5 </td> </tr> </tbody></table> <p>a) A<br />b) B<br />c) C<br />d) D</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-1436986466305828009?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com1tag:blogger.com,1999:blog-7030963759732925422.post-51035510984723003652007-06-07T22:32:00.001-07:002007-06-07T22:32:40.865-07:00<div class="postentry"> <div class="snap_preview"><p> Which of the following is suitable as a description of the characteristics of MO? </p> <p>a) Data is recorded by irradiating laser light on a recording medium covered with a magnetized recording film, thereby heating it and simultaneously changing the direction of magnetization.<br />b) Data is recorded on a thin plastic disk with a magnetic coating simply by changing the magnetization polarity.<br />c) Data is recorded by a combination of extremely small depressed areas called pits, and flat regions called lands which are between the pits.<br />d) Data is recorded using phase changes of a recording film being crystallized and uncrystallized by irradiating a laser light. </p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-5103551098472300365?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-6095165682229106862007-06-07T22:31:00.004-07:002007-06-07T22:32:17.118-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a standard bus specification for personal computers, in which the address bus width is 32 bits and the data bus width is 32/64 bits?</p> <p>a) ATA<br />b) CardBus<br />c) ISA<br />d) PCI</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-609516568222910686?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-3248727474387579992007-06-07T22:31:00.003-07:002007-06-07T22:31:51.590-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of supercomputers?</p> <p>a) The number of bits that can be handled at the same time by the accumulator inside the processor is extremely large, which improves character string processing performance.<br />b) Large-capacity hard disk devices and virtual storage technology are used to realize an extremely large memory capacity and improve performance.<br />c) Hardware circuits that are specialized for specific application fields are separately provided and combined according to their purposes in order to improve performance.<br />d) Performance is improved by joining together several to 10-odd processors containing vector instructions, or several hundreds to several thousands of microprocessors.</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-324872747438757999?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-365014151684428342007-06-07T22:31:00.001-07:002007-06-07T22:31:27.205-07:00<div class="postentry"> <div class="snap_preview"><p>In a virtual storage system using the paging method, sometimes the frequency of page replacements increases and the system’s processing capability declines abruptly. What is this type of phenomenon called?</p> <p>a) Slashing<br />b) Swap-out<br />c) Fragmentation<br />d) Page out</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-36501415168442834?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-18369267818282584662007-06-07T22:30:00.002-07:002007-06-07T22:31:04.592-07:00<div class="postentry"> <div class="snap_preview"><p>In a virtual storage system in which the real memory space usable by a program is 3 pages, if a program with a size of 6 pages is executed, how many times will page faults occur? In this example, the page reading sequence during program execution is 0, 1, 2, 3, 4, 0, 2, 4, 3, 1, 4, 5. The paging method is LRU (Least Recently Used), and in the initial state, none of the pages has been read into the real memory.</p> <p>a) 9<br />b) 10<br />c) 11<br />d) 12</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-1836926781828258466?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-18487909746854302652007-06-07T22:30:00.001-07:002007-06-07T22:30:33.914-07:00<div class="postentry"> <div class="snap_preview"><p>When a program was partitioned into tasks, multiple tasks entered into wait status under the same condition. At this time, which of the following inter-task synchronous control methods can simultaneously eliminate, from another task, all of the wait states of the tasks in which the condition occurred?</p> <p>a) Event flag<br />b) Semaphore<br />c) Mailbox<br />d) Rendezvous</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-1848790974685430265?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-75376293286782525252007-06-07T22:29:00.002-07:002007-06-07T22:30:06.916-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of the round-robin (RR) task scheduling method?</p> <p>a) CPU resources are allocated at fixed time intervals in accordance with priorities of the individual tasks.<br />b) At fixed time intervals, a timer interrupt occurs, causing a forced transfer of control to the first task in the executable queue.<br />c) This method is suitable for real-time systems in which tasks must be started immediately when an interrupt event occurs.<br />d) This method is not suitable for operating systems designed for multiple users.</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-7537629328678252525?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-16330374490807896372007-06-07T22:29:00.001-07:002007-06-07T22:29:43.300-07:00<div class="postentry"> <div class="snap_preview"><p>There exist processes A, B, C and D which occupy resources X, Y and Z and execute processing. As processing progresses, each process occupies resources in the sequence of values shown in the table below. When execution ends, the three resources are released all together. Which of the following processes has a possibility of creating a deadlock with process A? </p> <table style="border-collapse: collapse;" border="1" cellpadding="5" cellspacing="0"> <tbody><tr> <td rowspan="2">Process name</td> <td colspan="5" align="center">Sequence in which resources are occupied</td> </tr> <tr> <td>Resource X</td> <td>Resource Y</td> <td>Resource Z</td> </tr> <tr> <td>Process A</td> <td>1</td> <td>2</td> <td>3</td> </tr> <tr> <td>Process B </td> <td>1</td> <td>2</td> <td>1</td> </tr> <tr> <td>Process C </td> <td>2</td> <td>3</td> <td>1</td> </tr> <tr> <td>Process D </td> <td>1</td> <td>2</td> <td>3</td> </tr> </tbody></table> <p>a) Processes B and C<br />b) Processes B, C, and D<br />c) Process B only<br />d) Process C only </p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-1633037449080789637?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-9031837586699109852007-06-07T22:28:00.000-07:002007-06-07T22:29:11.784-07:00<div class="postentry"> <div class="snap_preview"><p>When a task enters executing status, ready status, or wait status, which of the following is suitable as a change in statuses when a task in executing status has its execution interrupted by another task due to preemption, up to the time that it again enters executing status?</p> <p>a) Executing status → Ready status → Executing status<br />b) Executing status → Ready status → Wait status → Executing status<br />c) Executing status → Wait status → Ready status → Executing status<br />d) Executing status → Wait status → Executing status</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-903183758669910985?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-65186128157131752392007-06-07T22:27:00.002-07:002007-06-07T22:28:50.533-07:00<div class="postentry"> <div class="snap_preview"><p>When storage areas are dynamically allocated and released repeatedly, sometimes storage areas which cannot be accessed from anywhere occur. Which of the following is a process that makes such storage areas usable again?</p> <p>a) Garbage collection<br />b) Stack<br />c) Heap<br />d) Fragmentation </p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6518612815713175239?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-50938761510880324682007-06-07T22:27:00.001-07:002007-06-07T22:27:27.853-07:00<div class="postentry"> <div class="snap_preview"><p>In a two-layer client/server system that uses a relational database, which of the following sends an SQL message when a stored procedure is not used?</p> <p>a) Application server<br />b) Client<br />c) Client and application server<br />d) Database server</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-5093876151088032468?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-11799891377033940222007-06-07T22:26:00.004-07:002007-06-07T22:27:06.585-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of a duplex system?</p> <p>a) A duplex system consists of two computer systems. Normally, one of these systems is used as an online system, while the other is used as a standby system for batch processing, development work, and the like.<br />b) A duplex system has higher reliability than a dual system, but is expensive.<br />c) A duplex system has redundant hardware, and the same data is processed in parallel by two processing systems, the results of which are collated at fixed time intervals.<br />d) In a duplex system, two CPUs share main memory and external storage devices, and operate on a single OS. Processes are handled in parallel by each CPU, and the load is controlled so that it can be distributed.</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-1179989137703394022?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-84579077447391776122007-06-07T22:26:00.003-07:002007-06-07T22:26:47.092-07:00<div class="postentry"> <div class="snap_preview"><p>Two branches, each of which has one automatic teller machine, are to be integrated. One automatic teller machine is to be installed at the integrated branch. Which of the following formulas determines the average waiting time for the automatic teller machine after integration? In this example, the waiting time is based on the M/M/1 queuing model, and the average waiting time does not include the service time.</p> <p>[Conditions]<br />(1) Average service time: T_s<br />(2) System utilization before integration: ρ for both branches<br />(3) The number of users after the integration is the total number of users of the two branches before the integration.</p> <table> <tbody> <tr> <td class="s1" rowspan="2" style="padding: 0pt;" align="center">a</td> <td rowspan="2" width="5"><br /></td> <td style="border-style: none; padding: 0pt 2px;" align="center">1</td> <td rowspan="2" width="60">×Ts</td> <td class="s1" rowspan="2" style="padding: 0pt;" align="center">b</td> <td rowspan="2" width="5"><br /></td> <td style="border-style: none; padding: 0pt 2px;" align="center">ρ</td> <td rowspan="2" width="60">×Ts</td> <td class="s1" rowspan="2" style="padding: 0pt;" align="center">c</td> <td rowspan="2" width="5"><br /></td> <td style="border-style: none; padding: 0pt 2px;" align="center">1</td> <td rowspan="2" width="60">×Ts</td> <td class="s1" rowspan="2" style="padding: 0pt;" align="center">d</td> <td rowspan="2" width="5"><br /></td> <td style="border-style: none; padding: 0pt 2px;" align="center">2ρ</td> <td rowspan="2" width="60">×Ts</td> </tr> <tr> <td style="border-style: solid none none; padding: 0pt 2px;" align="center">1－ρ</td> <td style="border-style: solid none none; padding: 0pt 2px;" align="center">1－ρ</td> <td style="border-style: solid none none; padding: 0pt 2px;" align="center">1－2ρ</td> <td style="border-style: solid none none; padding: 0pt 2px;" align="center">1－2ρ</td> </tr> </tbody> </table> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8457907744739177612?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-15286733007434241532007-06-07T22:26:00.001-07:002007-06-07T22:26:24.732-07:00<div class="postentry"> <div class="snap_preview"><p>The measurement results shown below were obtained when a certain SQL statement was processed. Based on the results, it seems there is some waiting for resources. What is the total waiting time in seconds? In this example, communication/processing time can be ignored.</p> <table style="border-collapse: collapse;" border="1" cellpadding="5" cellspacing="0"> <tbody><tr> <td>CPU time</td> <td>200 milliseconds</td> </tr> <tr> <td>Response time</td> <td>35.0 seconds</td> </tr> <tr> <td>Physical I/O processing</td> <td>400 operations</td> </tr> <tr> <td>Average disk access time per physical<br />I/O processing</td> <td>15 milliseconds<br />(including search time)</td> </tr> <tr> <td>Logical I/O processing</td> <td>2,000 operations</td> </tr> </tbody></table> <p>a) 4.8<br />b) 6.2<br />c) 28.8<br />d) 29.0</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-1528673300743424153?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-32142929804860860062007-06-07T22:25:00.006-07:002007-06-07T22:26:07.437-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of computer performance evaluation?</p> <p>a) With TPC, a major benchmark for online transaction processing, the measure of performance is TPS, which is objective. However, it lacks a measure of cost.<br />b) Dhrystone, Whetstone, Livermore Fortran Kernel, Linpack, SPEC, and the like are used as overall computer system performance benchmarks.<br />c) The use of multiple types of benchmarks for performance evaluation is effective for purposes such as selecting models to be installed, since the benchmark results can be used to understand system characteristics.<br />d) Benchmark programs are models of user programs from a system design perspective. Their results can be widely applied to models of computer performance from the user’s perspective.</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-3214292980486086006?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-38712470858745934792007-06-07T22:25:00.005-07:002007-06-07T22:25:51.299-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of the problems and solutions for <em>improving the performance</em> of a system that uses relational databases?</p> <p>a) When an SQL statement was executed, a full search occurred along the access path to which an index could not be used. Therefore, the database was re-organized.<br />b) I/O waiting time increased due to concentrated accesses, so the database was partitioned into multiple disks.<br />c) It was found that accessing was concentrated only to certain specific rows. Therefore, the index was re-set.<br />d) The amount of data placed in an overflow area increased due to updates and additions during operation over an extended time period. Therefore, the block size was reduced.</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-3871247085874593479?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-8609947286617583582007-06-07T22:25:00.003-07:002007-06-07T22:25:35.065-07:00<div class="postentry"> <div class="snap_preview"><p>What is the operation rate of a parallel system consisting of the two devices shown in the diagram below? In this example, if one of the devices is operating, then the system is considered as operating. On both devices A and B, the MTBF (mean time between failures) is 576 hours, and the MTTR (mean time to recovery) is 24 hours.</p> <p><img src="http://examination.files.wordpress.com/2007/02/q37.gif" alt="q37.gif" /></p> <p>a) 0.9216<br />b) 0.96<br />c) 0.9872<br />d) 0.9984</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-860994728661758358?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-5697561935036144102007-06-07T22:25:00.001-07:002007-06-07T22:25:16.232-07:00<div class="postentry"> <div class="snap_preview"><p>The failure rate of a certain hardware product changes over time, as represented by the bathtub curve shown in the graph below. What is the approximate number of years of the random failures period of this product?</p> <p><a href="http://examination.files.wordpress.com/2007/02/q38.gif" title="q38.gif"><img src="http://examination.files.wordpress.com/2007/02/q38.gif" alt="q38.gif" /></a></p> <p>a) 3<br />b) 6<br />c) 7<br />d) 10 </p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-569756193503614410?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-60289278811670928572007-06-07T22:24:00.005-07:002007-06-07T22:24:56.867-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of data stored in a data warehouse?</p> <p>a) The data spans several years, and is never stored for an extended period.<br />b) The definitions of data items are centrally managed across departments.<br />c) The data is primarily used directly by the mission critical systems.<br />d) The data is always updated in real time, so that the most recent state is maintained.</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6028927881167092857?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-18833976010494369082007-06-07T22:24:00.003-07:002007-06-07T22:24:41.381-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of the concept behind system implementation with the characteristics shown below?</p> <p>(1) Work is assigned by a user. The locations (servers) within the network required to process this work are autonomously visited, and the work is finished.<br />(2) When all work is finished, it is returned to the user.<br />(3) The user does not need to access the network until the work is returned after it is sent out to the network.</p> <p>a) Agent<br />b) Client<br />c) Script<br />d) Process</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-1883397601049436908?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-33657777934253500552007-06-07T22:24:00.001-07:002007-06-07T22:24:19.171-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of data types in programming languages?</p> <p>a) The real type is expressed as binary numbers of finite length, and matches the set of real numbers in math.<br />b) When two’s complement notation is used with the integer type, -128 through 127 can be handled with 8 bits.<br />c) The character type specifies a set of alphabetical characters for handling by input/output devices.<br />d) The logical type has three values AND, OR, and NOT.</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-3365777793425350055?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-48779694017706119442007-06-07T22:23:00.004-07:002007-06-07T22:24:02.537-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a language processor program which generates a target program for use by computers with different instruction formats?</p> <p>a) Emulator<br />b) Cross compiler<br />c) Generator<br />d) Simulator</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-4877969401770611944?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-33546362496734305982007-06-07T22:23:00.003-07:002007-06-07T22:23:30.758-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a language for describing the structures of documents with the functions such as those listed below?</p> <p>It is possible to create title lists from several documents or search only for important portions in long documents by <em>adding marks called tags</em> to titles and comments, or important portions and so forth.</p> <p>a) DAL<br />b) IDL<br />c) SGML<br />d) SQL</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-3354636249673430598?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-26877662797004513782007-06-07T22:23:00.001-07:002007-06-07T22:23:12.255-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of a particular programming tool?</p> <p>a) A tool for checking data structures during debugging is called an inspector.<br />b) A tool for easily searching for function descriptions and definitions for individual programs is called a simulator.<br />c) A tool for finding program errors through program execution is called an editor.<br />d) A tool which has functions such as character insertion, deletion, and replacement for editing source code is called a tracer.</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-2687766279700451378?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-2239407673255085302007-06-07T22:22:00.005-07:002007-06-07T22:22:54.474-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of a particular software development method?</p> <p>a) RAD is a method whereby the software development steps are partitioned into several stages, and development progresses while the output from the previous step is used as the input for the next step.<br />b) The spiral model is a development method whereby an existing system is repeatedly revised to improve the software.<br />c) Prototyping is a short-term system development method designed for “fast, inexpensive, high-quality” systems development. It incorporates the use of CASE tools and the like.<br />d) Round trip is a method in object-oriented development. In this method analysis, design and programming are repeated a number of times to complete development through trial and error.</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-223940767325508530?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-65736363885744433652007-06-07T22:22:00.003-07:002007-06-07T22:22:36.491-07:00<div class="postentry"> <div class="snap_preview"><p>The DFD in Figure 2 below was created, corresponding to the E-R diagram in Figure 1 for order entry processing. Which of the following is an entity corresponding to data store Z in Figure 2? In this example, the relationships between entities in the E-R diagram are defined such that 1 represents 1, and an asterisk (*) represents many.</p> <p><img src="http://examination.files.wordpress.com/2007/02/q46.gif" alt="q46.gif" /></p> <p>a) Customer master file<br />b) Inventory file<br />c) Product master file<br />d) Order detail file </p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6573636388574443365?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-84542833465534926632007-06-07T22:22:00.001-07:002007-06-07T22:22:16.415-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of techniques used in the definition of requirements, analysis, and design of software?</p> <p>a) A decision table represents logics in a tabular form showing correspondences between conditions and actions. It is effective as a means of describing requirements specifications involving complex condition judgments. It is also effective for checking, such as checking for the omission of program control conditions.<br />b) A structured chart can be used to express, in an easily understandable manner, the relationships between system “state” types and the “factors” for state transitions.<br />c) A state transition diagram can be used to express processing modes particular to a control system by adding control transfers and control flows to a DFD.<br />d) A control flowchart uses as basic elements data “source, sink, flow, process, and store”. It can be used to express a network of data flows within a system.</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8454283346553492663?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-18066932262357922482007-06-07T22:21:00.003-07:002007-06-07T22:21:55.277-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of delegation in object orientation?</p> <p>a) A mechanism to have a given object configured with multiple objects.<br />b) A mechanism in which, when an operation is applied to an object, the operation is automatically applied to related objects as well.<br />c) A mechanism to have an operation on a given object internally delegated to another object.<br />d) A mechanism to have a lower-level class inherit the attributes or operations of a higher-level class.</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-1806693226235792248?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-67283167916636141452007-06-07T22:21:00.001-07:002007-06-07T22:21:39.761-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of characteristics of a data-oriented approach?</p> <p>a) An approach in which data related to a specific business process is systematized in order to improve development efficiency, since the systematization of a wide range of data is very labor-intensive.<br />b) An approach that proceeds from functional design to detailed design in order to minimize design changes while maintaining overall system integrity.<br />c) An approach in which a subject business process is partitioned into highly independent units, thereby improving design efficiency and allowing implementation in the partitioned units.<br />d) An approach in which data and data operations are integrated to form standard components, and these standard components are used to construct a system.</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6728316791663614145?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-88755286198703844262007-06-07T22:19:00.004-07:002007-06-07T22:21:21.866-07:00<div class="postentry"> <div class="snap_preview"><p>Module coupling needs to be weakened in order to increase module independence. Which of the following descriptions of information transfers between modules has the weakest level of module coupling?</p> <p>a) Data defined in a common area is referenced by related modules.<br />b) Control parameters are transferred as arguments, and the module execution sequence is controlled.<br />c) Only data items are transferred as arguments between modules.<br />d) The required data is externally declared and shared.</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a> </p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8875528619870384426?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-913013885897275662007-06-07T22:19:00.003-07:002007-06-07T22:19:48.086-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is a support tool with which conditions that need to be logically satisfied between variables are inserted at appropriate locations in a program, and with which tests are performed to determine whether those conditions are satisfied during<br />program execution?</p> <p>a) Assertion checker<br />b) Code auditor<br />c) Test coverage monitor<br />d) Driver </p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-91301388589727566?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-53103672448885029422007-06-07T22:19:00.001-07:002007-06-07T22:19:31.247-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of a bottom-up test compared to a top-down test?</p> <p>a) A bottom-up test is more effective when applied to a newly developed system than to cases where a system is developed by revising an existing system.<br />b) In the final stage of the test, the discovery of problems in the interface between modules has a large impact.<br />c) A stub is required to take the place of a higher-level module that has not been developed.<br />d) In a bottom-up test, development starts at lower-level areas where there are many modules. Therefore, in the initial stage of development, it is difficult to do programming and testing in parallel. </p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-5310367244888502942?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-12876388775802576152007-06-07T22:18:00.002-07:002007-06-07T22:19:12.627-07:00<div class="postentry"> <div class="snap_preview"><p>In the flowchart shown below, what is the relationship between initialization values a and b, which are to be provided to m and n in , so as to execute the steps in the following order?<br /><img src="http://examination.files.wordpress.com/2007/02/maru1.png" alt="maru1.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru2.png" alt="maru2.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru3.png" alt="maru3.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru5.png" alt="maru5.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru2.png" alt="maru2.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru3.png" alt="maru3.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru4.png" alt="maru4.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru2.png" alt="maru2.png" />→<img src="http://examination.files.wordpress.com/2007/02/maru6.png" alt="maru6.png" /><br />In this example, a and b are both positive integers. </p> <p><img src="http://examination.files.wordpress.com/2007/02/q53.gif" alt="q53.gif" /></p> <p>a) a =2b<br />b) 2a = b<br />c) 2a = 3b<br />d) 3a = 2b</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-1287638877580257615?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-60688459032127965802007-06-07T22:18:00.001-07:002007-06-07T22:18:53.310-07:00<div class="postentry"> <div class="snap_preview"><p>A certain sales company is developing a system to provide data to sales staff at offices throughout the country, from servers at the main office using a company network. The work proceeds steadily, and a decision is made to run the system tests in the company headquarters’ internal LAN environment. During tests in this environment, which of the following is difficult to verify? In this example, the company network consists of LANs at the main office and individual offices, as well as communication lines connecting the individual offices.</p> <p>a) Screen operation procedures<br />b) Number of processes on the servers<br />c) Data display formats<br />d) Response time</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6068845903212796580?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-24610372118900014182007-06-07T22:17:00.001-07:002007-06-07T22:17:14.131-07:00<div class="postentry"> <div class="snap_preview"><p>There exists a program that outputs a header and up to 30 records on each page of a form. If boundary value analysis is used to analyze the number of output records, which of the following is the most suitable combination of numbers of input records to be set as test cases?</p> <p>a) 0, 1, 30, 31, 60, 61<br />b) 0, 15, 30, 45, 60, 75<br />c) 0, 30, 60, 90, 120, 150<br />d) 0, 30, 300, 3000, 16383, 16384 </p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-2461037211890001418?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-78222236370034019542007-06-07T22:16:00.005-07:002007-06-07T22:16:59.308-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of reusing software? </p> <p>a) Reusing many small components is more effective than reusing large components for reducing the workload per unit size.<br />b) The development of reusable components is more costly than development of ordinary software of the same scale.<br />c) Component reuse utilization is dependent on the number of reused components, and is not dependent on component sizes.<br />d) Incentive programs for encouraging component reuse are not very effective. </p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-7822223637003401954?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-82918522462644921272007-06-07T22:16:00.003-07:002007-06-07T22:16:40.714-07:00<div class="postentry"> <div class="snap_preview"><p>The table below is a schedule management table for a given project. The diagram on the right shows the tasks and standard number of days for each task. In order to reduce the time length for completing this project by three days, what is the minimum required additional cost in tens of thousands of yen?<br /><img src="http://examination.files.wordpress.com/2007/02/q57a.gif" alt="q57a.gif" /><br /><img src="http://examination.files.wordpress.com/2007/02/q57b.gif" alt="q57b.gif" /></p> <p>a) 9<br />b) 11<br />c) 14<br />d) 15 </p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8291852246264492127?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-36694244657295273992007-06-07T22:16:00.001-07:002007-06-07T22:16:20.915-07:00<div class="postentry"> <div class="snap_preview"><p>With the function point method, which of the following is considered in calculating function points?</p> <p>a) Developers’ skills<br />b) Number of screens<br />c) Programming languages<br />d) Number of modules </p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-3669424465729527399?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-52501832795622423412007-06-07T22:15:00.005-07:002007-06-07T22:15:58.873-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of job scheduling in a computer system? </p> <p>a) Job scheduling with the FCFS (first-come first-served) method allocates CPU time fairly among jobs, so it is possible to guarantee throughput and response time.<br />b) When preemption is done using time slices, there are numerous timer interrupts which lower throughput.<br />c) In a computer system that contains a mixture of interactive and batch processing, improved response performance can be expected when the priority level of interactive jobs is increased.<br />d) In order to improve throughput, it is more effective to increase the processing priority of jobs that are heavy CPU users than the priority of jobs that are heavy I/O users. </p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-5250183279562242341?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-69458745807590323302007-06-07T22:15:00.003-07:002007-06-07T22:15:38.856-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of TCO (Total Cost of Ownership)? </p> <p>a) TCO is the total sum of costs paid by a user who monopolistically implements a database on a system.<br />b) TCO is the total sum of information system costs from installation through maintenance and management.<br />c) TCO is the total sum of software costs from planning through maintenance.<br />d) TCO is the total sum of equipment and software costs paid by the user in purchasing personal computers. </p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6945874580759032330?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-9878431964989946752007-06-07T22:15:00.001-07:002007-06-07T22:15:17.049-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following combinations of addresses and port numbers used in TCP/IP is required in order to identify a TCP connection?</p> <p>a) Receiver’s IP address, receiver’s TCP port number<br />b) Receiver’s IP address, receiver’s TCP port number, sender’s IP address, sender’s TCP port number<br />c) Receiver’s IP address, sender’s IP address<br />d) Receiver’s MAC address, receiver’s IP address, receiver’s TCP port number, sender’s MAC address, sender’s IP address, sender’s TCP port number</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-987843196498994675?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-73829373057486389802007-06-07T22:14:00.005-07:002007-06-07T22:14:59.080-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of POP3, which is a protocol used in e-mail systems?</p> <p>a) A protocol used to authenticate a user, based on user ID and password after a PPP link has been established.<br />b) A protocol used to exchange mail messages between mail servers.<br />c) A protocol used to receive mail from a mail server mailbox.<br />d) A protocol used by a user to send mail.</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a> </p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-7382937305748638980?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-6543536693843932472007-06-07T22:14:00.003-07:002007-06-07T22:14:39.738-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of the network layer in the OSI basic reference model?</p> <p>a) The network layer provides functions for conversation control, synchronization, and data exchange management.<br />b) The network layer provides functions for activating, maintaining, and deactivating physical connections in order to transmit bits.<br />c) The network layer provides data transfer functions between systems where users are present, through one or more communication networks.<br />d) The network layer provides functions to users for common information representation formats.</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-654353669384393247?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-22144761250351625822007-06-07T22:14:00.001-07:002007-06-07T22:14:24.258-07:00<div class="postentry"> <div class="snap_preview"><p>The PCM transmission system samples audio, converts it to 8-bit digital data, and transfers it at 64 Kbps without compressing it. What is the sampling time in microseconds during this process?</p> <p>a) 15.6<br />b) 46.8<br />c) 125<br />d) 128</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-2214476125035162582?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-11301156049719412492007-06-07T22:13:00.004-07:002007-06-07T22:14:09.038-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of an ATM switch?</p> <p>a) A general term for private branch exchanges used to interconnect extension telephones installed on premises in a limited area such as an office, or to connect subscriber telephone lines with extension telephones.<br />b) A switch that partitions data into fixed-length blocks called cells, and attaches headers containing address information to each cell in order to handle various types of data in an integrated manner.<br />c) A storage-type switch that segments data into blocked units before transfer. The switching processing is realized by software processing, so the transmission speed is limited to approximately several dozen Kbps.<br />d) An ATM switch switches data that has been segmented into units called frames. The switch does not re-transmit data for transmission errors, so it is possible to increase processing speed within the network.</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-1130115604971941249?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-47236151962943965482007-06-07T22:13:00.003-07:002007-06-07T22:13:51.021-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of FDDI?</p> <p>a) Maximum transmission speed is 45 Mbps.<br />b) The transmission media that can be used are optical fiber, coaxial, cable, twisted-pair, cable, and wireless.<br />c) FDDI is a token ring-type LAN.<br />d) FDDI using optical fiber has a dual ring configuration, wherein the primary ring is used for data transmission and the secondary ring is used for control.</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-4723615196294396548?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-37658300025194711312007-06-07T22:13:00.001-07:002007-06-07T22:13:29.201-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of data transmission by personal computers using an ISDN basic rate interface?</p> <p>a) If a TA (terminal adapter) is used, then the TA handles all protocol processing required for communication and there is no need to install a communication program in the personal computer.<br />b) It is not necessary to have two telephone numbers (one for the personal computer and one for telephone use), even in cases where data communication is performed by the personal computer while the user is talking on the telephone.<br />c) In cases where the personal computer’s RS-232C port is used, a TA is not needed if there is a DSU (digital service unit).<br />d) Data communication can take place at speeds up to 64 Kbps when two B channels are used at the same time.</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-3765830002519471131?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-56847713676492797052007-06-07T22:12:00.004-07:002007-06-07T22:13:08.441-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is address information that is used by a switching hub (layer 2 switch) for switching?</p> <p>a) DTE address<br />b) IP address<br />c) MAC address<br />d) SAP address</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-5684771367649279705?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-88611743930228626392007-06-07T22:12:00.003-07:002007-06-07T22:12:50.617-07:00<div class="postentry"> <div class="snap_preview"><p>A database is modeled using an ANSI/SPARC three-level schema structure. Which of the following is the schema that is used to guarantee data independencies by separating application programs from logical data?</p> <p>a) Conceptual schema<br />b) External schema<br />c) Store schema<br />d) Internal schema</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8861174393022862639?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-2466608518829650452007-06-07T22:12:00.001-07:002007-06-07T22:12:24.168-07:00<div class="postentry"> <div class="snap_preview"><p>An “employee” table is partitioned into four tables. Which table does not satisfy the condition that “items other than keys are subordinate only to key items”?<br />In this example, the underlined item represents the primary key.</p> <table style="border: medium none rgb(255, 255, 255);" border="1" cellpadding="0" cellspacing="0" width="100%"> <tbody><tr> <td colspan="9" style="border: medium none ;">Employee</td> </tr> <tr> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Employee<br />number</td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Name </td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Birthdate </td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Salary</td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Postal code</td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Address</td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Position</td> <td style="border: 1px solid rgb(0, 0, 0);" align="center"> Department</td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Work location</td> </tr> </tbody></table> <p><br /></p> <table style="border: medium none rgb(255, 255, 255);" border="1" cellpadding="0" cellspacing="0" width="300"> <tbody><tr> <td colspan="3" style="border: medium none ;">a)</td> </tr> <tr> <td style="border: 1px solid rgb(0, 0, 0);" align="center"><u>Employee number</u> </td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Salary</td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Work location</td> </tr> </tbody></table> <table style="border: medium none rgb(255, 255, 255);" border="1" cellpadding="0" cellspacing="0" width="300"> <tbody><tr> <td colspan="3" style="border: medium none ;">b)</td> </tr> <tr> <td style="border: 1px solid rgb(0, 0, 0);" align="center"><u>Employee number</u> </td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Name </td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Birthdate</td> </tr> </tbody></table> <table style="border: medium none rgb(255, 255, 255);" border="1" cellpadding="0" cellspacing="0" width="300"> <tbody><tr> <td colspan="3" style="border: medium none ;">c)</td> </tr> <tr> <td style="border: 1px solid rgb(0, 0, 0);" align="center"><u>Employee number</u> </td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Position </td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Department</td> </tr> </tbody></table> <table style="border: medium none rgb(255, 255, 255);" border="1" cellpadding="0" cellspacing="0" width="300"> <tbody><tr> <td colspan="3" style="border: medium none ;">d)</td> </tr> <tr> <td style="border: 1px solid rgb(0, 0, 0);" align="center"><u>Employee number</u> </td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Postal code </td> <td style="border: 1px solid rgb(0, 0, 0);" align="center">Address</td> </tr> </tbody></table> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-246660851882965045?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-78325098370050896782007-06-07T22:11:00.001-07:002007-06-07T22:11:45.042-07:00<div class="postentry"> <div class="snap_preview"><p>Embedded SQL has an operation for transferring to a parent program a derived table obtained by an inquiry one line at a time. Which of the following is the word closely related to this operation?</p> <p>a) CURSOR<br />b) ORDER BY<br />c) UNION<br />d) UNIQUE</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-7832509837005089678?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-55783275104489817902007-06-07T22:10:00.000-07:002007-06-07T22:11:26.038-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following SQL statements provides the same results as the SQL statement shown below for a “dealer” table and “supplier” table? In this example, the dealer and supplier tables are structured as shown below. (The underlining denotes primary keys.)</p> <p>Dealer (<u>Dealer_ number</u>, Dealer_name)<br />Supplier (<u>Product_number</u>, Dealer_number)</p> <p>SELECT Dealer_name FROM Dealer, Supplier<br />WHERE Dealer.Dealer_number = Supplier.Dealer_number AND Product_number = 100</p> <p>a) SELECT Dealer_name FROM Dealer WHERE NOT EXISTS<br />( SELECT * FROM Supplier WHERE Product_number = 100 )</p> <p>b) SELECT Dealer_name FROM Dealer WHERE NOT EXISTS<br />( SELECT Product_number FROM Supplier WHERE Product_number = 100 )</p> <p>c) SELECT Dealer_name FROM Dealer WHERE Dealer_number IN<br />( SELECT Dealer_number FROM Supplier WHERE Product_number = 100 )</p> <p>d) SELECT Dealer_name FROM Dealer WHERE Product_number IN<br />( SELECT Product_number FROM Supplier WHERE Product_number = 100 )</p> <p><a href="http://examination.files.wordpress.com/2007/02/c.gif" title="C">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-5578327510448981790?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-74851622777976183942007-06-07T22:09:00.005-07:002007-06-07T22:09:53.279-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a method for <em>securing the information </em> needed to recover a database in case of a software fault in transaction processing?</p> <p>a) A checkpoint is set and the contents prior to updating are recorded to a journal file.<br />b) At the set checkpoint, the contents after updating are recorded directly to a dump file.<br />c) At the set checkpoint, a dump file for the entire database is acquired.<br />d) The contents prior to updating are recorded to a journal file when the database is updated.</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-7485162277797618394?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-50738029439962908492007-06-07T22:09:00.003-07:002007-06-07T22:09:35.117-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of the advantages of <em>using a stored procedure from the client </em>side in a client/server system?</p> <p>a) The amount of communication between the client and server can be reduced.<br />b) The amount of memory use between the client and server can be reduced.<br />c) The number of database accesses by the server can be reduced.<br />d) Processes can be distributed.</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-5073802943996290849?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-43684108570509551652007-06-07T22:09:00.001-07:002007-06-07T22:09:17.162-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of <em>integrity constraints</em> in a DBMS? </p> <p>a) Restrictions on the values allowed when a given item is changed are called formal restrictions.<br />b) Restrictions related to the data types, number of digits, and the like for a given item are called attribute restrictions.<br />c) Restrictions on parent-child relationships in a hierarchical database correspond to updating restrictions in a relational database.<br />d) Restrictions to prevent mismatches among related tables during updates are called referential constraints.</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-4368410857050955165?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-60248976664828166042007-06-07T22:08:00.005-07:002007-06-07T22:08:57.889-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of public key encryptograph?</p> <p>a) Examples are DES and FEAL.<br />b) Examples are RSA and elliptical curve encryption.<br />c) Encryption keys and decryption keys are the same.<br />d) Common keys must be transmitted.</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-6024897666482816604?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-58509704584173651752007-06-07T22:08:00.003-07:002007-06-07T22:08:40.314-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is effective as a method to prevent illegal use of a database?</p> <p>a) Setting access rights<br />b) Controlling consistency maintenance<br />c) Encapsulating data<br />d) Use of duplex files</p> <p><a href="http://examination.files.wordpress.com/2007/02/a.gif" title="A">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-5850970458417365175?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-10674175223425787602007-06-07T22:08:00.001-07:002007-06-07T22:08:20.053-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of “preventive” functions in approaches to secure computing?</p> <p>a) Checking an access log and monitoring for illegal accesses.<br />b) Establishing a contingency plan and implementing training.<br />c) Periodically backing up important files.<br />d) Implementing in-house security education to increase individual awareness.</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-1067417522342578760?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-22738913052685369312007-06-07T22:07:00.003-07:002007-06-07T22:07:56.584-07:00<div class="postentry"> <div class="snap_preview"><p> Which of the following is suitable as a description of “Common Frame 98 (SLCP-JCF98)”?</p> <p>a) It aims to specify artifacts and transfer methods, and provides a software acquisition model to acquirers.<br />b) It provides common criteria to both acquirers and suppliers through the visualization of the details of planning, development, operation, and maintenance work in a system centered on software.<br />c) Transaction work scope and work items are clarified, and agreements specified by a Common Frame are always used.<br />d) It makes the actual conditions pertaining to project management (schedule management, process management, etc.) easier to understand, and improvements at the management level can be anticipated, so it is effective primarily for package development.</p> <p><a href="http://examination.files.wordpress.com/2007/02/b.gif" title="B">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-2273891305268536931?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0tag:blogger.com,1999:blog-7030963759732925422.post-81671830042503024512007-06-07T22:07:00.001-07:002007-06-07T22:07:36.088-07:00<div class="postentry"> <div class="snap_preview"><p>Which of the following is suitable as a description of Unicode?</p> <p>a) It is a 7-bit character code system established by ANSI (American National Standards Institute).<br />b) It is a character code system established as JIS (Japanese Industrial Standard). There is an 8-bit code for handling alphanumeric characters and katakana, and a 16-bit code for handling double-byte characters.<br />c) Unicode is also called extended Unix code. In it, double-byte characters and single- byte katakana characters are expressed in two or three bytes.<br />d) In order to handle characters for numerous countries, characters with similar shapes such as those in Japanese and Chinese are assigned to the same codes, and are expressed as two-byte character codes.</p> <p><a href="http://examination.files.wordpress.com/2007/02/d.gif" title="D">answer</a></p> </div> </div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7030963759732925422-8167183004250302451?l=vitec.luyenthianhvan.org' alt='' /></div>vitecnoreply@blogger.com0