Operating System MCQ Online Test

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An OS is an integral part of a system. The services it provides make interaction with the system easier and its properties put the user at ease. Following is an Operating System MCQ Online Test on various topics to test your knowledge. Let’s start!!!

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Question 1 of 20

1. Question

When does the page fault occur?

The page is present in memory.

The deadlock occurs.

The page is not present in memory.

The buffering occurs.

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Question 2 of 20

2. Question

Banker’s algorithm:

To prevent deadlock

To deadlock recovery

All of the above

None of these

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Question 3 of 20

3. Question

Where does a deleted file go?

Recycle bin

Hard disk

Taskbar

None of these

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Question 4 of 20

4. Question

Which of the following is not a kind of user interface?

GUI

Batch based Interface

Real-Time interface

Command Line interface

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Question 5 of 20

5. Question

What is the full form of the DSM?

Direct system module

Direct system memory

Demoralized system memory

Distributed shared memory

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Incorrect

Question 6 of 20

6. Question

State the full form of IDL.

Interface definition language

Interface direct language

Interface data library

None of these

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Incorrect

Question 7 of 20

7. Question

Cold boot is another name for:

Bootstrapping

Bootprocessing

Coldstrapping

None of the above

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Incorrect

Question 8 of 20

8. Question

We use fence register for:

For disk protection

For CPU protection

For memory protection

None of these

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Incorrect

Question 9 of 20

9. Question

Program execution provides a mechanism for:

Process synchronisation

Process communication

Deadlock handling

All of these

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Question 10 of 20

10. Question

Getpid never returns a/an

error

output

constant

integer

Correct

Incorrect

Question 11 of 20

11. Question

This is the part of resource management:

Process Management

Main memory Management

Secondary Management

All of the mentioned

Correct

Incorrect

Question 12 of 20

12. Question

Debugging is difficult in:

Batch processing

Multitasking

Multiprogramming

None of these

Correct

Incorrect

Question 13 of 20

13. Question

Spooling increases:

System memory

System space

Disk storage

Disk traffic

Correct

Incorrect

Question 14 of 20

14. Question

How many buffers are present in the bounded buffer problem?

there is only one buffer

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

there are infinite buffers

the buffer size is bounded

Correct

Incorrect

Question 15 of 20

15. Question

A program has a:

Short lifetime

Infinite lifetime

Long lifetime

Neither long nor short lifetime

Correct

Incorrect

Question 16 of 20

16. Question

Which of the following has global and static variables?

Stack

Data

Heap

Text

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Question 17 of 20

17. Question

Interactivity causes:

Air pollution

Noise pollution

Land pollution

None of the above

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Incorrect

Question 18 of 20

18. Question

Real-Time system is:

Fast

Give timely response

Has tight time constraints

All of these

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Question 19 of 20

19. Question

Spooling pushes data in the following:

disk

buffer

Both of the above

CD-ROM

Correct

Incorrect

Question 20 of 20

20. Question

In order to extend the use of physical memory, virtual memory uses?

disk

OS

CPU

External drive

Correct

Incorrect

Summary

Properties and services are the main traits of the operating system that define the OS in a simplified manner, making it a lot less complex. The above questions give an insight into these two aspects of the OS.