Which two rights allow a process to change the entries in a column?

• A. Copy and transfer
• B. Copy and owner
• C. Owner and transfer
• D. Deny and copy

Which is an unsolvable problem in access-matrix?

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

Which of the following objects require protection?

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

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 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

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) 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

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

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

The code segment that misuses its environment is called a _____________

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