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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 the correct order for the different phases of virus execution.
i) Propagation phase                      ii) Dormant phase
iii) Execution phase                         iv) Triggering phase
A) i, ii, iii, and iv
B) i, iii, ii and iv
C) ii, i, iv an iii
D) ii, iii, iv and i


3. A ………………… attaches itself to executable files and replicates, when the infected program is executed, by finding other executable files to infect.
A) Stealth virus
B) Polymorphic Virus
C) Parasitic Virus
D) Macro Virus

4. …………………….. is a form of virus explicitly designed to hide itself from detection by antivirus software.
A) Stealth virus
B) Polymorphic Virus
C) Parasitic Virus
D) Macro Virus

5. A …………………….. creates copies during replication that are functionally equivalent but have distinctly different bit patterns.
A) Boot Sector Virus
B) Polymorphic Virus
C) Parasitic Virus
D) Macro Virus

6. A portion of the Polymorphic virus, generally called a …………………….. , creates, a random encryption, key to encrypt the remainder of the virus.
A) mutual engine
B) mutation engine       
C) multiple engine
D) polymorphic engine

7. State whether the following statement is true.
i) A macro virus is platform independent.
ii) Macro viruses infect documents, not executable portions of code.
A) i-only
B) ii-only
C) Both i and ii
D) Non i and ii

8. The type(s) of auto executing macros, in Microsoft word is/are
A) Auto execute
B) Auto macro
C) Command macro
D) All of the above

9. In …………….., the virus places an identical copy of itself into other programs or into certain system areas on the disk.
A) Dormant phase
B) Propagation phase
C) Triggering phase
D) Execution phase

10. A ……………… is a program that secretly takes over another Internet-attached computer and then uses that computer to launch attacks.
A) Worm
B) Zombie
C) Virus
D) Trap doors
Answers:
1.       B) Zombie
2.       C) ii, i, iv an iii
3.       C) Parasitic Virus
4.       A) Stealth virus
5.       B) Polymorphic Virus
6.       B) mutation engine
7.       C) Both i and ii
8.       D) All of the above
9.       B) Propagation phase
10.   B) Zombie


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