Education: Computer Security

MCQ of Computer Security with answer set – 2

<div dir="ltr" style="text-align: left;" trbidi="on"><div align="center" class="MsoNormal" style="text-align: center;"><br /></div><div class="MsoNormal">1. …………….. are used in denial of service attacks, typically against targeted web sites.</div><div class="MsoNormal">A) Worm </div><div class="MsoNormal">B) Zombie<b><o:p></o:p></b></div><div class="MsoNormal">C) Virus</div><div class="MsoNormal">D) Trojan horse</div><div class="MsoNormal"><br /></div><div class="MsoNormal">2. Select the correct order for the different phases of virus execution.</div><div class="MsoNormal">i) Propagation phase                      ii) Dormant phase</div><div class="MsoNormal">iii) Execution phase                         iv) Triggering phase</div><div class="MsoNormal">A) i, ii, iii, and iv</div><div class="MsoNormal">B) i, iii, ii and iv</div><div class="MsoNormal">C) ii, i, iv an iii<b><o:p></o:p></b></div><div class="MsoNormal">D) ii, iii, iv and i</div><div class="MsoNormal"></div><a name="more"></a><br /><br /><div class="MsoNormal">3. A ………………… attaches itself to executable files and replicates, when the infected program is executed, by finding other executable files to infect.</div><div class="MsoNormal">A) Stealth virus</div><div class="MsoNormal">B) Polymorphic Virus</div><div class="MsoNormal">C) Parasitic Virus<b><o:p></o:p></b></div><div class="MsoNormal">D) Macro Virus</div><div class="MsoNormal"><br /></div><div class="MsoNormal">4. …………………….. is a form of virus explicitly designed to hide itself from detection by antivirus software.</div><div class="MsoNormal">A) Stealth virus<b><o:p></o:p></b></div><div class="MsoNormal">B) Polymorphic Virus</div><div class="MsoNormal">C) Parasitic Virus</div><div class="MsoNormal">D) Macro Virus</div><div class="MsoNormal"><br /></div><div class="MsoNormal">5. A …………………….. creates copies during replication that are functionally equivalent but have distinctly different bit patterns.</div><div class="MsoNormal">A) Boot Sector Virus</div><div class="MsoNormal">B) Polymorphic Virus<b><o:p></o:p></b></div><div class="MsoNormal">C) Parasitic Virus</div><div class="MsoNormal">D) Macro Virus</div><div class="MsoNormal"><br /></div><div class="MsoNormal">6. A portion of the Polymorphic virus, generally called a …………………….. , creates, a random encryption, key to encrypt the remainder of the virus.</div><div class="MsoNormal">A) mutual engine</div><div class="MsoNormal">B) mutation engine<b>        <o:p></o:p></b></div><div class="MsoNormal">C) multiple engine</div><div class="MsoNormal">D) polymorphic engine</div><div class="MsoNormal"><br /></div><div class="MsoNormal">7. State whether the following statement is true. </div><div class="MsoNormal">i) A macro virus is platform independent.</div><div class="MsoNormal">ii) Macro viruses infect documents, not executable portions of code.</div><div class="MsoNormal">A) i-only</div><div class="MsoNormal">B) ii-only</div><div class="MsoNormal">C) Both i and ii<b><o:p></o:p></b></div><div class="MsoNormal">D) Non i and ii</div><div class="MsoNormal"><br /></div><div class="MsoNormal">8. The type(s) of auto executing macros, in Microsoft word is/are </div><div class="MsoNormal">A) Auto execute</div><div class="MsoNormal">B) Auto macro</div><div class="MsoNormal">C) Command macro</div><div class="MsoNormal">D) All of the above<b><o:p></o:p></b></div><div class="MsoNormal"><br /></div><div class="MsoNormal">9. In …………….., the virus places an identical copy of itself into other programs or into certain system areas on the disk.</div><div class="MsoNormal">A) Dormant phase</div><div class="MsoNormal">B) Propagation phase<b><o:p></o:p></b></div><div class="MsoNormal">C) Triggering phase</div><div class="MsoNormal">D) Execution phase</div><div class="MsoNormal"><br /></div><div class="MsoNormal">10. A ……………… is a program that secretly takes over another Internet-attached computer and then uses that computer to launch attacks.</div><div class="MsoNormal">A) Worm</div><div class="MsoNormal">B) Zombie<b><o:p></o:p></b></div><div class="MsoNormal">C) Virus</div><div class="MsoNormal">D) Trap doors</div><div align="center" class="MsoNormal" style="text-align: center;"><b>Answers:<o:p></o:p></b></div><table border="1" cellpadding="0" cellspacing="0" class="MsoTableGrid" style="border-collapse: collapse; border: none; margin-left: 1.2in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-padding-alt: 0in 5.4pt 0in 5.4pt; mso-yfti-tbllook: 1184;"> <tbody><tr>  <td style="border: solid black 1.0pt; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt; width: 153.0pt;" valign="top" width="204"><div class="MsoListParagraphCxSpFirst" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>1.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>B) Zombie<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>2.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>C) ii, i, iv an iii<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>3.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>C) Parasitic Virus<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>4.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>A) Stealth virus<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>5.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>B) Polymorphic Virus<o:p></o:p></b></div></td>  <td style="border-left: none; border: solid black 1.0pt; mso-border-alt: solid black .5pt; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-themecolor: text1; mso-border-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt; width: 157.5pt;" valign="top" width="210"><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>6.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>B) mutation engine<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>7.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>C) Both i and ii<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>8.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>D) All of the above<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>9.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>B) Propagation phase<o:p></o:p></b></div><div class="MsoListParagraphCxSpLast" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>10.<span style="font-size: 7pt; font-weight: normal;">     </span></b><b>B) Zombie<o:p></o:p></b></div></td> </tr></tbody></table><div class="MsoNormal"><b><br /></b><br /><h2 style="text-align: left;"><span style="font-size: small;"><b>You may also wanted to view the following</b> <b>related posts</b></span></h2></div><div class="MsoNormal"><ul style="text-align: left;"><li><a href="http://www.siteforinfotech.com/2013/01/solved-mcq-of-computer-security-set-1.html">Solved MCQ of Computer Security set -1</a></li><li><a href="http://www.siteforinfotech.com/2013/01/mcq-of-operating-system-with-answer-set.html">Solved MCQ of Operating System Principles set-2</a></li><li><a href="http://www.siteforinfotech.com/2013/01/solved-mcq-of-operating-system-theory.html">Solved MCQ of Operating System Theory set-3</a></li><li><a href="http://www.siteforinfotech.com/2013/01/mcq-of-operating-system-with-answer-set_28.html">MCQ of Operating System with answer set-4</a></li><li><a href="http://www.siteforinfotech.com/2013/01/solved-mcq-of-operating-system-set-5.html">Solved MCQ of Operating System Set-5</a></li></ul><h2 style="text-align: left;"><span style="font-size: small;"><b>You can view the following</b> <b>other posts</b></span></h2></div><ul><li><a href="http://www.siteforinfotech.com/2012/12/mcq-of-database-management-system-dbms_11.html">Solved MCQ of Database Management System (DBMS) Set - 3</a></li><li><a href="http://www.siteforinfotech.com/2012/11/solved-mcq-of-system-analysis-and_28.html">Solved MCQ of System Analysis and Design Set-3</a></li><li><a href="http://www.siteforinfotech.com/2012/12/solved-mcq-of-data-structure-set-2.html">Solved MCQ of Data Structure Set - 2</a></li><li><a href="http://www.siteforinfotech.com/2013/01/solved-mcq-of-java-for-java-proficiency.html">Solved MCQ of Java for Java Proficiency test set-3</a></li><li><a href="http://www.blogger.com/blogger.g?blogID=3332849087599085574#editor/target=post;postID=6677146666461105703;onPublishedMenu=allposts;onClosedMenu=allposts;postNum=0;src=postname">MCQ of C++ with answer Set-2</a></li><li><a href="http://www.siteforinfotech.com/2013/01/mcq-of-computer-networking-with-answer_17.html">MCQ of Computer Networking with answer set-4</a></li></ul><h2><span style="font-size: small;">For other more Multiple Choice Questions (MCQs): <a color="pink" href="http://www.siteforinfotech.com/p/mcqs.html">Click Here</a></span></h2></div>

MCQ of Computer Security with answer set – 2

1. …………….. are used in denial of service attacks, typically against targeted web sites. A) Worm B) Zombie C) Virus D) Trojan horse 2. Select...

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Solved MCQ of Computer Security set -1

<div dir="ltr" style="text-align: left;" trbidi="on"><div align="center" class="MsoNormal" style="text-align: center;"><br /></div><div class="MsoNormal">1. In computer security, ……………………. means that computer system assets can be modified only by authorized parities.</div><div class="MsoNormal">A) Confidentiality</div><div class="MsoNormal">B) Integrity<b><o:p></o:p></b></div><div class="MsoNormal">C) Availability</div><div class="MsoNormal">D) Authenticity</div><div class="MsoNormal"><br /></div><div class="MsoNormal">2. In computer security, …………………….. means that the information in a computer system only be accessible for reading by authorized parities.</div><div class="MsoNormal">A) Confidentiality<b><o:p></o:p></b></div><div class="MsoNormal">B) Integrity</div><div class="MsoNormal">C) Availability</div><div class="MsoNormal">D) Authenticity</div><div class="MsoNormal"></div><a name="more"></a><br /><br /><div class="MsoNormal">3. The type of threats on the security of a computer system or network are ……………………..</div><div class="MsoNormal">i) Interruption                   ii) Interception                  iii) Modification</div><div class="MsoNormal">iv) Creation                         v) Fabrication</div><div class="MsoNormal">A) i, ii, iii and iv only</div><div class="MsoNormal">B) ii, iii, iv and v only</div><div class="MsoNormal">C) i, ii, iii and v only<b><o:p></o:p></b></div><div class="MsoNormal">D) All i, ii, iii, iv and v </div><div class="MsoNormal"><br /></div><div class="MsoNormal">4. Which of the following is independent malicious program that need not any host program?</div><div class="MsoNormal">A) Trap doors</div><div class="MsoNormal">B) Trojan horse</div><div class="MsoNormal">C) Virus</div><div class="MsoNormal">D) Worm<b><o:p></o:p></b></div><div class="MsoNormal"><br /></div><div class="MsoNormal">5. The ……….. is code that recognizes some special sequence of input or is triggered by being run from a certain user ID of by unlikely sequence of events.</div><div class="MsoNormal">A) Trap doors<b><o:p></o:p></b></div><div class="MsoNormal">B) Trojan horse</div><div class="MsoNormal">C) Logic Bomb</div><div class="MsoNormal">D) Virus</div><div class="MsoNormal"><br /></div><div class="MsoNormal">6. The …………….. is code embedded in some legitimate program that is set to “explode” when certain conditions are met.</div><div class="MsoNormal">A) Trap doors</div><div class="MsoNormal">B) Trojan horse</div><div class="MsoNormal">C) Logic Bomb<b><o:p></o:p></b></div><div class="MsoNormal">D) Virus</div><div class="MsoNormal"><br /></div><div class="MsoNormal">7. Which of the following malicious program do not replicate automatically?</div><div class="MsoNormal">A) Trojan Horse<b><o:p></o:p></b></div><div class="MsoNormal">B) Virus </div><div class="MsoNormal">C) Worm</div><div class="MsoNormal">D) Zombie</div><div class="MsoNormal"><br /></div><div class="MsoNormal">8. …………… programs can be used to accomplish functions indirectly that an unauthorized user could not accomplish directly.</div><div class="MsoNormal">A) Zombie</div><div class="MsoNormal">B) Worm</div><div class="MsoNormal">C) Trojan Horses<b><o:p></o:p></b></div><div class="MsoNormal">D) Logic Bomb</div><div class="MsoNormal"><br /></div><div class="MsoNormal">9. State whether true of false.</div><div class="MsoNormal">i) A worm mails a copy of itself to other systems.</div><div class="MsoNormal">ii) A worm executes a copy of itself on another system.</div><div class="MsoNormal">A) True, False</div><div class="MsoNormal">B) False, True</div><div class="MsoNormal">C) True, True<b><o:p></o:p></b></div><div class="MsoNormal">D) False, False</div><div class="MsoNormal"><br /></div><div class="MsoNormal">10. A ………….. is a program that can infect other programs by modifying them, the modification includes a copy of the virus program, which can go on to infect other programs.</div><div class="MsoNormal">A) Worm</div><div class="MsoNormal">B) Virus<b><o:p></o:p></b></div><div class="MsoNormal">C) Zombie</div><div class="MsoNormal">D) Trap doors</div><div align="center" class="MsoNormal" style="text-align: center;"><b>Answers:<o:p></o:p></b></div><table border="1" cellpadding="0" cellspacing="0" class="MsoTableGrid" style="border-collapse: collapse; border: none; margin-left: 1.2in; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-padding-alt: 0in 5.4pt 0in 5.4pt; mso-yfti-tbllook: 1184;"> <tbody><tr>  <td style="border: solid black 1.0pt; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-border-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt; width: 153.0pt;" valign="top" width="204"><div class="MsoListParagraphCxSpFirst" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>1.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>B) Integrity<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>2.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>A) Confidentiality<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>3.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>C) i, ii, iii and v only<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>4.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>D) Worm<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>5.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>A) Trap doors<o:p></o:p></b></div></td>  <td style="border-left: none; border: solid black 1.0pt; mso-border-alt: solid black .5pt; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1; mso-border-themecolor: text1; mso-border-themecolor: text1; padding: 0in 5.4pt 0in 5.4pt; width: 157.5pt;" valign="top" width="210"><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>6.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>C) Logic Bomb<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>7.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>A) Trojan Horse<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>8.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>C) Trojan Horses<o:p></o:p></b></div><div class="MsoListParagraphCxSpMiddle" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>9.<span style="font-size: 7pt; font-weight: normal;">         </span></b><b>C) True, True<o:p></o:p></b></div><div class="MsoListParagraphCxSpLast" style="margin: 0in 0in 0.0001pt 26.1pt; text-indent: -0.25in;"><b>10.<span style="font-size: 7pt; font-weight: normal;">     </span></b><b>B) Virus<o:p></o:p></b></div></td> </tr></tbody></table><div class="MsoNormal"><b><br /></b><br /><h2 style="text-align: left;"><span style="font-size: small;"><b>You may also wanted to view the following</b> <b>related posts</b></span></h2></div><div class="MsoNormal"><ul style="text-align: left;"><li><a href="http://www.siteforinfotech.com/2013/01/mcq-of-computer-security-with-answer.html">MCQ of Computer Security with answer set – 2</a></li><li><a href="http://www.siteforinfotech.com/2013/01/mcq-of-operating-system-with-answer-set.html">Solved MCQ of Operating System Principles set-2</a></li><li><a href="http://www.siteforinfotech.com/2013/01/solved-mcq-of-operating-system-theory.html">Solved MCQ of Operating System Theory set-3</a></li><li><a href="http://www.siteforinfotech.com/2013/01/mcq-of-operating-system-with-answer-set_28.html">MCQ of Operating System with answer set-4</a></li><li><a href="http://www.siteforinfotech.com/2013/01/solved-mcq-of-operating-system-set-5.html">Solved MCQ of Operating System Set-5</a></li></ul><h2 style="text-align: left;"><span style="font-size: small;"><b>You can view the following</b> <b>other posts</b></span></h2></div><ul><li><a href="http://www.siteforinfotech.com/2012/12/mcq-of-database-management-system-dbms_11.html">Solved MCQ of Database Management System (DBMS) Set - 3</a></li><li><a href="http://www.siteforinfotech.com/2012/11/solved-mcq-of-system-analysis-and_28.html">Solved MCQ of System Analysis and Design Set-3</a></li><li><a href="http://www.siteforinfotech.com/2012/12/solved-mcq-of-data-structure-set-2.html">Solved MCQ of Data Structure Set - 2</a></li><li><a href="http://www.siteforinfotech.com/2013/01/solved-mcq-of-java-for-java-proficiency.html">Solved MCQ of Java for Java Proficiency test set-3</a></li><li><a href="http://www.blogger.com/blogger.g?blogID=3332849087599085574#editor/target=post;postID=6677146666461105703;onPublishedMenu=allposts;onClosedMenu=allposts;postNum=0;src=postname">MCQ of C++ with answer Set-2</a></li><li><a href="http://www.siteforinfotech.com/2013/01/mcq-of-computer-networking-with-answer_17.html">MCQ of Computer Networking with answer set-4</a></li></ul><h2><span style="font-size: small;">For other more Multiple Choice Questions (MCQs): <a color="pink" href="http://www.siteforinfotech.com/p/mcqs.html">Click Here</a></span></h2></div>

Solved MCQ of Computer Security set -1

1. In computer security, ……………………. means that computer system assets can be modified only by authorized parities. A) Confidentiality B) Inte...

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