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MCQ

Q.

In the write ahead logging a _____________ is maintained.

A

a memory

B

a system

C

a disk

D

a log record

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MCQ

1.

The two phase locking protocol consists of ____________

A

growing and shrinking phase

B

shrinking and creation phase

C

creation and growing phase

D

destruction and creation phase

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2.

TestAndSet instruction is executed ____________

A

after a particular process

B

periodically

C

atomically

D

none of the mentioned

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3.

A system is in the safe state if ____________

A

the system can allocate resources to each process in some order and still avoid a deadlock

B

there exist a safe sequence

C

all of the mentioned

D

none of the mentioned

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4.

Mutual exclusion can be provided by the __________

A

mutex locks

B

binary semaphores

C

both a and b

D

none of the mentioned

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5.

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

A

rarely

B

frequently

C

rarely

D

none of the mentioned

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