tag:blogger.com,1999:blog-70309637597329254222012-05-13T10:38:46.176-07:00vitecnoreply@blogger.comBlogger193125tag: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.com0