The internal code of any software that will set of a malicious function when specified conditions are met, is called _____________

A. Logic bomb
B. Trap door
C. Code stacker
D. None of the mentioned

The code segment that misuses its environment is called a _____________

A. Internal thief
B. Trojan horse
C. Code stacker
D. None of the mentioned

When an attempt is to make a machine or network resource unavailable to its intended users, the attack is called _____________

A. Denial-of-service attack
B. Slow read attack
C. Spoofed attack
D. Starvation attack

What are the various roles of protection?

A. It is used to detect errors which can prevent contamination of system
B. It is used used to accelerate a process
C. It is used to optimize system downtime
D. None of the mentioned

Which of the following statements are correct? i) logical separation – in which process use different physical objects like separate printers ii) cryptographic separation – in which process having different security requirement at different times iii) Logical separation – In which users operate under illusion that no other processes exist iv) cryptographic separation – In which processes conceal their data and computations

A. I
B. I and ii
C. Ii and iii
D. Iii and iv

Which of the following statements are correct? i) Physical separation – in which process use different physical objects like separate printers ii) Temporal separation – in which process having different security requirement at different times iii) Physical separation – In which users operate under illusion that no other processes exist iv) Temporal separation – In which processes conceal their data and computations

A. I
B. I and ii
C. Ii and iii
D. Iii and iv

Which of the following statements are correct? i) Physical separation – in which process use different physical objects like separate printers ii) Physical separation – in which process having different security requirement at different times iii) Logical separation – In which users operate under illusion that no other processes exist iv) Logical separation – In which processes conceal their data and computations

A. I
B. I and iii
C. Ii and iii
D. Iii and iv

What is ‘separation’ in security of Operating systems?

A. To have separate login for different users
B. To have separate hard disk drive/partition for different users
C. It means keeping one user’s objects separate from other users
D. None of the mentioned

Which of the following objects require protection?

A. Memory
B. Monitor
C. Power supply unit
D. All of the mentioned

Which is an unsolvable problem in access-matrix?

A. Owner override
B. Brute force
C. Access denied
D. Confinement