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MCQ

Q.

Every time a request for allocation cannot be granted immediately, the detection algorithm is invoked. This will help identify ____________

A

the set of processes that have been deadlocked

B

the set of processes in the deadlock queue

C

the specific process that caused the deadlock

D

all of the mentioned

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1.

Semaphore is a/an _______ to solve the critical section problem.

A

hardware for a system

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special program for a system

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integer variable

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none of the mentioned

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2.

What are Spinlocks?

A

CPU cycles wasting locks over critical sections of programs

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Locks that avoid time wastage in context switches

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Locks that work better on multiprocessor systems

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3.

Each request requires that the system consider the _____________ to decide whether the current request can be satisfied or must wait to avoid a future possible deadlock.

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resources currently available

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processes that have previously been in the system

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resources currently allocated to each process

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future requests and releases of each process

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4.

A deadlock eventually cripples system throughput and will cause the CPU utilization to ______

A

increase

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drop

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stay still

D

none of the mentioned

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5.

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

A

rarely

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frequently

C

rarely

D

none of the mentioned

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