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MCQ

Q.

Which of the following calls never returns an error?

A

getpid

B

fork

C

ioctl

D

open

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MCQ

1.

What is a long-term scheduler?

A

It selects which process has to be brought into the ready queue

B

It selects which process has to be executed next and allocates CPU

C

It selects which process to remove from memory by swapping

D

None of the mentioned

Discussion

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2.

The Zero Capacity queue __________

A

is referred to as a message system with buffering

B

is referred to as a message system with no buffering

C

is referred to as a link

D

none of the mentioned

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3.

Which of the following do not belong to queues for processes?

A

Job Queue

B

PCB queue

C

Device Queue

D

Ready Queue

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4.

The only state transition that is initiated by the user process itself is __________

A

block

B

wakeup

C

dispatch

D

none of the mentioned

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5.

The entry of all the PCBs of the current processes is in __________

A

Process Register

B

Program Counter

C

Process Table

D

Process Unit

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