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MCQ

Q.

To _______ to a safe state, the system needs to keep more information about the states of processes.

A

abort the process

B

roll back the process

C

queue the process

D

none of the mentioned

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MCQ

1.

Semaphores are mostly used to implement ____________

A

System calls

B

IPC mechanisms

C

System protection

D

None of the mentioned

Discussion

MCQ

2.

To ensure that the hold and wait condition never occurs in the system, it must be ensured that ____________

A

whenever a resource is requested by a process, it is not holding any other resources

B

each process must request and be allocated all its resources before it begins its execution

C

a process can request resources only when it has none

D

all of the mentioned

Discussion

MCQ

3.

What are the two kinds of semaphores?

A

mutex

B

binary

C

counting

D

decimal

Discussion

MCQ

4.

Which one of the following is the deadlock avoidance algorithm?

A

banker's algorithm

B

round-robin algorithm

C

elevator algorithm

D

karn's algorithm

Discussion

MCQ

5.

If deadlocks occur frequently, the detection algorithm must be invoked ________

A

rarely

B

frequently

C

rarely

D

none of the mentioned

Discussion

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