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MCQ

Q.

A deadlock can be broken by ____________

A

abort one or more processes to break the circular wait

B

abort all the process in the system

C

preempt all resources from all processes

D

none of the mentioned

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MCQ

1.

If the semaphore value is negative ____________

A

its magnitude is the number of processes waiting on that semaphore

B

it is invalid

C

no operation can be further performed on it until the signal operation is performed on it

D

none of the mentioned

Discussion

MCQ

2.

In the bounded buffer problem ____________

A

there is only one buffer

B

there are n buffers (n being greater than one but finite)

C

there are infinite buffers

D

the buffer size is bounded

Discussion

MCQ

3.

A locking protocol is one that ____________

A

governs how locks are acquired

B

governs how locks are released

C

governs how locks are acquired and released

D

none of the mentioned

Discussion

MCQ

4.

A binary semaphore is a semaphore with integer values ____________

A

1

B

-1

C

0.8

D

0.5

Discussion

MCQ

5.

The state of the data accessed by an aborted transaction must be restored to what it was just before the transaction started executing. This restoration is known as ________ of transaction.

A

safety

B

protection

C

roll-back

D

revert-back

Discussion

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