CPU Scheduling Questions

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11.

Which algorithm is defined in Time quantum?

A

shortest job scheduling algorithm

B

round robin scheduling algorithm

C

priority scheduling algorithm

D

multilevel queue scheduling algorithm

Correct Answer: B

None.

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12.

Process are classified into different groups in ____________

A

shortest job scheduling algorithm

B

round robin scheduling algorithm

C

priority scheduling algorithm

D

multilevel queue scheduling algorithm

Correct Answer: D

None.

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13.

In multilevel feedback scheduling algorithm ____________

A

a process can move to a different classified ready queue

B

classification of ready queue is permanent

C

processes are not classified into groups

D

none of the mentioned

Correct Answer: A

None.

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14.

Which one of the following can not be scheduled by the kernel?

A

kernel level thread

B

user level thread

C

process

D

none of the mentioned

Correct Answer: B

User level threads are managed by thread library and the kernel is unaware of them.

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15.

CPU scheduling is the basis of ___________

A

multiprocessor systems

B

multiprogramming operating systems

C

larger memory sized systems

D

none of the mentioned

Correct Answer: B

None.

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16.

With multiprogramming ______ is used productively.

A

time

B

space

C

money

D

all of the mentioned

Correct Answer: A

None.

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17.

What are the two steps of a process execution?

A

I/O and OS Burst

B

CPU and I/O Burst

C

Memory and I/O Burst

D

OS and Memory Burst

Correct Answer: B

None.

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18.

An I/O bound program will typically have ____________

A

a few very short CPU bursts

B

many very short I/O bursts

C

many very short CPU bursts

D

a few very short I/O bursts

Correct Answer: C

None.

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19.

A process is selected from the ______ queue by the ________ scheduler, to be executed.

A

blocked, short term

B

wait, long term

C

ready, short term

D

ready, long term

Correct Answer: C

None.

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20.

The switching of the CPU from one process or thread to another is called ____________

A

process switch

B

task switch

C

context switch

D

all of the mentioned

Correct Answer: D

None.

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