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) Integrity
C) Availability
D) Authenticity
2. In computer security, …………………….. means that the
information in a computer system only be accessible for reading by authorized
parities.
A) Confidentiality
B) Integrity
C) Availability
D) Authenticity

3. The type of threats on the security of a computer system
or network are ……………………..
i) Interruption                   ii)
Interception                  iii)
Modification
iv) Creation                         v)
Fabrication
A) i, ii, iii and iv only
B) ii, iii, iv and v only
C) i, ii, iii and v only
D) All i, ii, iii, iv and v
4. Which of the following is independent malicious program
that need not any host program?
A) Trap doors
B) Trojan horse
C) Virus
D) Worm
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.
A) Trap doors
B) Trojan horse
C) Logic Bomb
D) Virus
6. The …………….. is code embedded in some legitimate program
that is set to “explode” when certain conditions are met.
A) Trap doors
B) Trojan horse
C) Logic Bomb
D) Virus
7. Which of the following malicious program do not replicate
automatically?
A) Trojan Horse
B) Virus
C) Worm
D) Zombie
8. …………… programs can be used to accomplish functions
indirectly that an unauthorized user could not accomplish directly.
A) Zombie
B) Worm
C) Trojan Horses
D) Logic Bomb
9. State whether true of false.
i) A worm mails a copy of itself to other systems.
ii) A worm executes a copy of itself on another system.
A) True, False
B) False, True
C) True, True
D) False, False
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.
A) Worm
B) Virus
C) Zombie
D) Trap doors
Answers:
1.      
B) Integrity
2.      
A) Confidentiality
3.      
C) i, ii, iii and v only
4.      
D) Worm
5.      
A) Trap doors
6.      
C) Logic Bomb
7.      
A) Trojan Horse
8.      
C) Trojan Horses
9.      
C) True, True
10.  
B) Virus