MCQ - COMPUTER VIRUS - SEE 2074 [COMPUTER SCIENCE]

1.      Computer virus is a _____ software.

System program                        Application                        Destructive                  Utility

2.      Route of virus transmission.

Mouse                          Print                      Microphone                       Pen drive

3.      ________ Virus are often transmitted by a floppy disk left in the floppy disk drive.

Boot-sector                 Trojan horse                       Script                    logic bomb

4.      A virus that infects Master Boot Record of the computer system.

Macro virus                Multipartite virus                             Program infectors        Boot sector virus

5.      A virus that changes its appearance in every infection is called _______

Macro virus                System infectors                Polymorphic virus            Multipartite virus

6.      A virus that is designed to infect executable files is

File infectors              Macro virus                                       Polymorphic virus        Multipartite virus

7.      __________ Virus can infect both programs and boot sectors.

Stealth virus               File infectors                                     Multipartite virus        Polymorphic virus

8.      Viruses attach themselves to documents such as Word and Excel.

Macro virus                File infectors                                     Polymorphic virus        Multipartite virus

9.      A program that is designed to detect and delete virus.

Antivirus                     Malware                                             Freeware                      Shareware

10.   Computer virus is___________software.

i. Malware                   ii. Utility                             iii. Application   iv. Operating System

11.   Boot sector virus infects

i. System files                            ii. Master boot record        iii. Application software    iv. Document file

12.   Computer virus can spread from one computer to another through_

i. Infected portable disk           ii. The Internet                   iii. Pirated software           iv. All of the above.

13.   Computer virus can

i. Hide in a host file                  ii. Replicate                        iii. Spread                          iv. All of the above.

14.   Which is antivirus software?

i. Scan                          ii. Defrag              iii. Kaspersky                     iv. Power point

15.   A type of virus that infects the first sector, i.e. the boot sector, of a floppy disk or hard drive.

i) Boot sector virus            ii) File infecting virus             iii) Polymorphic virus                     iv) None of the above

16.   Disk Killer, stoned and Michelangelo are examples of ________________

i) Boot sector virus            ii) File infecting virus             iii) Polymorphic virus                     iv) All of the above

17.   A type of virus that infects executable files having .exe, .com, .ovl, .drv, .sys, or .dil.

i) Boot sector virus                     ii) File infecting                              iii) Script virus                                         iv) Macro virus

18.   A virus that can change its appearance with every infection is called_____________

i) Boot virus               ii) Micro virus                   iii) Script virus                                    iv) None of them

19.   A program designed to detect and remove virus from the computer system.

i) Shareware               ii) Freeware                       iii) Antivirus                                           iv) Malware

20.   The Melissa worm is released, targeting Microsoft Word and Outlook- based systems, and creating considerable network traffic.                                  

i) 1999                         ii) 2000                                             iii) 2006                                                   iv) 2010

21.   A computer program that can copy itself and infect a computer without the permission or knowledge of the user.

i. Computer worm       ii. Trojan Horse iii. Computer Virus           iv. None of the above

22.   A virus that infects the part of the computer called a system sector.

i. Boot sector virus              ii. File infecting Virus           iii. Polymorphic virus              iv. None of the above

23.   Disk Killer, Stoned and Michelangelo are the examples of                     

i. Boot sector virus      ii. File infecting Virus                   iii. Polymorphic virus         iv. Script virus

24.   The type of virus that is designed to infect executables files having extensions .exe, .com, or .dll.

i. Boot sector virus        ii. File Virus    iii. Script virus                 iv. Macro virus

25.                                 is a self-encrypted virus designed to avoid detection by a scanner.

i. Polymorphic virus                 ii. Macro virus    iii. Script virus    iv. None of the above

26.                                 is a class of program that searches your hard drive and floppy disks for  any known or potential viruses.

i. Shareware                        ii. Freeware iii. Antivirus                                 iv. Malware             

27.                                are programs that set up your modem connection to connect a 1-900 number.

i. Adware                     ii. Dialers                            iii. Hijackers       iv. Malware

28.   Virus are designed to infect the boot sector of the disk.

i. Boot sector virus                    ii. file infecting virus                            iii. Polymorphic virus

29.   The type of virus that is designed to infect executable program files having extension .exe, .com, or .dill.

 i. boot sector virus                       ii. file virus                    iii. script virus

30.   A type of virus that replaces a macro , which is what enables a program to work and instigates a designated group of actions and commands.

i)Macro virus                         ii)File infecting virus                       iii)Polymorphic virus

31.   A virus that changes its appearance in every infection is called

i)Polymorphic virus            ii)Macro virus                      iii)Script virus

32.   A program or set of programs designed to prevent, search for, detect, and remove software viruses, and other malicious software like worms, Trojans, adware and more.

i)Shareware                     ii)Freeware                          ii)Antivirus

33.   Computer virus are known as

i. computer programs             ii. biological problems       iii. hardware components       iv. None of the above

34.   Which of the following is not anti-virus

i.AVG                                  ii.NAV                      iii, Kaspersky                      iv. I Love you

35.   Which of the following virus infects the various parts of operating system?

i. boot sector                        ii. Worm                    iii. Macro                             iv. system infector

36.   Which is the source for virus transfer?

i. Mouse                            ii. Pen drive                 iii. Printer                            iv. None of the above

37.   Which software protects from computer virus?

i. Antivirus software            ii. Word processing software              iii. Spreadsheet software     iv. Backup software

38.   Computer virus can destroy

i. Hardware                         ii. Software                  iii. Data                                iv. All

39.   Boot sector virus infects

i. System files                     ii. Master boot record              iii. Application software     iv. Document file

40.   Virus is a

i. Utility program   ii. Destructive program   iii. System program   iv. None

41.   Boot sector virus affects

i. System files   ii. Master Boot Record   iii. Application software   iv. None

42.   An example of antivirus software is

i. NAV   ii. McAfee   iii. CPAV              iv. All

43.   Multipartite viruses have combination features of

i. Boot sector & stealth virus           ii. Boot sector &macro  virus               iii. Boot sector & program virus      iv. None

44.   Boot sector virus infects or substitutes its own code for either the DOS boot sector or the master boot record.(MBR)

i. Boot sector virus                   ii. file infecting virus                       iii. polymorphic virus

45.   Disk killer, stoned, Michelangelo are the examples of ………..

i. Boot sector virus                   ii.File infecting virus                       iii. polymorphic virus

46.   The type of virus that is designed to infect executable program files having extensions .exe,.com,.dll

i. Boot sector virus                                  ii.File virus                                        iii.Script virus

47.   A virus that can change its appearance with every infection is called…..

 i. . polymorphic virus                             ii. Macro virus                   iii. Script virus

48.   A program designed to detect and remove virus from the computer system

i. shareware                ii.Freeware                         iii. Antivirus

49.   6. Norton antivirus, when loaded onto a computer system , checks the following areas for viruses         

boot record                 programs at the time you use them                                             both

50.   Which is not a virus?

i. Worm                       ii. Logic bomb                    iii. Trojan Horse iv. Win-zip

51.   Route of virus transmission:
i) Pen drive  ii) Microphone                  iii) Printer           

52.   Boot sector virus infects ……..
i) System file              ii) Master boot record      iii) Application software  iv) Document file

53.   Which computer virus damages the master boot record?
i) Macro virus            ii) File virus        iii) New folder virus         iv) Boot sector virus

54.   Which virus infects boot sector files?
i) Macro virus            ii) Multipartite virus         iii) Boot sector virus         iv) Program virus

55.   Which one is not a type of virus?

i) Message Carrying virus       ii) Boot sector virus          iii)System virus  iv)Special Purpose Application Infector

56.   Virus is a type of ___________.

i. System program      ii. Package program    iii. Destructive program   iv. Web program

57.   Which one is not a type of virus?
i) message carrying virus        ii) boot sector virus    iii) system infector   iv) special purpose application infector

58.   Which of the following is an anti-virus program?
        i) NAV                 ii) Windows        iii) Photoshop     iv) All of the above

59.   Computer virus is ……….
i) dust particle            ii) computer programs      iii) useful program            iv) none of the above

60.   What is the route of virus transmission?
i. Monitor     ii. Flash drive      iii. Mouse                           iv. Cable

MCQ - COMPUTER SECURITY - SEE 2074 [COMPUTER SCIENCE]

1.      The term computer security refers to:

Use of antivirus         Protection of software      Protection to a computer system   Use of firewall

2.      An important counter measure against data corruption or loss.

Password policy                        Defragmentation               Scan disk                     Backup system

3.      Which is not the power protection device?

UPS                                             Spike Guard                       Volt Guard                  Scan disk

4.      _______ protects the machine and peripheral devices from being damage.

Information security Hardware security             Software security              None of them

5.      To prevent the loss of data during power failures, we use:

Encryption program                 Surge protector                  Firewall                UPS

6.      _____ are used to avoid access for unauthorized users.

Logins                                         Passwords                           Encryption                  Lock and key

7.      Scan disk is used for

Removing virus                         Removing bad clusters                    Backup data        All of above

8.       _____________ protect the machine and peripheral hardware from theft, electronic intrusion and damage.

i) Information security         ii) Hardware security                          iii) Software security            iv) None of the above

9.      Some of the methods of hardware protection are:

i) Fire Alarms            ii) Security Lighting           iii)Closed-circuit cameras               iv)All of above

10.   c) The temperature in computer system should be maintained between ______to________

i)21`C to 24`C              ii) 20`C to 25`C                              iii) 23`C to 28`C                       iv) None of the above

11.    d) A device that protects your PC against power surges and spikes.

i) UPS              ii) Voltage Regulator                    iii) Surge suppressor                iv) All of the above

12.   e) The type of security that provides barriers and other cyber –tools that protect programs, files

and the information flow to and from a computer.

i) Computer security            ii) Hardware security                           iii) Software security                 iv) None of the above

13.                                protects the machine and peripheral hardware from theft electronic intrusion and damage.

i. Information security                      ii. Hardware security              iii. Software security                  iv. None of the above

14.   Some of the methods of hardware protection are:

i. Password security                  ii. Security lighting                          iii. Scandisk                  iv. All of the above

15.   The temperature in the computer system should be maintained between             and          .

i.68 to 72 degree Fahrenheit            ii.88 to 78 degree Fahrenheit               iii.68 to 27 degree Fahrenheit    iv. All

16.                               is a device that allows your computer to keep running for at least a short time when the primary power source is lost.

i.UPS           ii. Voltage regulator            iii. Surge processor             iv. All of the above

17.   An electrical regulator designed to automatically maintain a constant voltage level.

i.UPS                ii. Voltage regulator       iii. Surge processor           iv. All of the above

18.                               refers to the condition of a disk in which files are divided into pieces scattered around the disk.

i. Fragmentation         ii. Defragmentation          iii. Scan disk       iv. All of the above

19.   An important countermeasure against data corruption or loss.

i.Password policy      ii. Defragmentation           iii. Scan disk       iv. Backup system

20.   Protects the machine and peripheral hardware from theft, electronic intrusion and damage.

i)Information security            ii)Hardware security                    iii)Software security

21.   The temperature in the computer system should be maintained between                   to           .

i)21^oC and 24^oC                  ii)22^oC and 25^oC             iii)23^oC and 26^oC

22.   A device that protects your PC against power surges and spikes.

i)UPS                   ii) Voltage regulator                       iii)Surge suppressor

23.   The type of security barriers and other cyber-tools that protect programs files, and the information  flow to and from a computer.

i)Computer security                  ii)Hardware security              iii)Software security

24.   The process of loading the noncontiguous fragments of data, rearranging   the fragments and restoring  them into fewer fragments or into the whole life.

i)Fragmentation              ii)Defragmentation              iii)Scan disk

25.   Which of the following is not hardware security method?

i. Insurance     ii. Maintenance       iii. Closed-circuit cameras        iv. Hard lock key

26.   Which of the following measure allows to protect compouters being opened from unauthorized user?

i .Antivirus program      ii. Password                 iii. Debug               iv. program

27.   The computer security is purely concerned with the following

i. Hardware security            ii. software security     iii. Hardware and software security              iv. Data security

28.   Which of the following is not power supply device?

i. Volt guard               ii.UPS            iii. Constant Voltage Transformer                    iv. Power Plug

29.   Which of the following is not software security measure?

i. Virus Scanning          ii. Scandisk                  iii. Password             iv. Security Guard

30.   Common computer security is

Hardware Security           Software security        Hardware & software security        None of them

31.   Hardware security includes

Regular maintenance               Use of power of regulator devices               Both                       None of them

32.   Data and software security includes

Protection from computer virus            Cover the computer property         Both          None of them

33.   UPS is a

Voltage filtration device         Voltage processing device                             Voltage regulator device           None

34.   Scan disk is performed by using

Application software               Operating system software                            Utility software      None

35.   Backup is way of

                                     i.          Securing data and information                                            Securing internal part of the computer

                                    ii.          Securing external parts of the computer                            None of them

36.   Defragmentation is a process of

Formatting the disk         Relocation of the disk                              Relocation of the files of the disk               None of them

37.   …….protects the machine and peripheral hardware from theft, electronic intrusion and damage.

i. information security                     ii. Hardware security                       iii. Software security

38.   The temperature in the computer system should be maintained between …. to ….

i.21 to 24                            ii.22 to 25                           ii.23 to 26          

39.   A device that protects your PC against power surges and spikes.

i. Uninterruptible Power Supply                         ii. Voltage regulator      iii. Surge suppressor

40.   The type of security that provides barriers and other cyber tools that protects program, files, and the information flow to and from a computer

i. computer security          ii. Hardware security                       iii. Software security

41.   The ………. Process optimize the read/write process by realigning the speed posiyion of related file clusters to speed up the overall operation of the drive

i. Fragmentation                        ii. Defragmentation                          iii. Scan disk

42.   Which device protects hardware?
i) UPS           ii) MODEM         iii) Gateway        iv) All of the above

43.   Process of arranging the scattered parts of file into a contiguous manner is _______.

i. debugging           ii. Backup        iii. Defragmentation      iv. Scandisk

44.   Process of arranging the scattered parts of file into a contiguous manner.
        i) Backup            ii) Defragmentation          iii) Debugging     iv) All of the above