Operating System MCQ Quiz

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OS is one of the subjects that can be commonly seen when it comes to competitive exams. Thus, it is important that a student is clear about the concepts of OS. Following is a short mcq quiz on the topics of operating system that can help you know how much you know about this subject.

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Question 1 of 20

1. Question

Which one is system software?

Operating system

Compiler

Utilities

All of the above

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Question 2 of 20

2. Question

Which of the following increases a system’s computing power?

Multithreading

Multiprocessing

Both A and B

None of the above

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Question 3 of 20

3. Question

Give an example of a Real-Time Operating System?

MAC

MS-DOS

Windows 10

Process Control

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Question 4 of 20

4. Question

Which OS is used for a client-server network?

MAC

Linux

Windows XP

Windows 2000

Correct

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Question 5 of 20

5. Question

A thread does not share:

program counter

stack

both program counter and stack

none of the mentioned

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Question 6 of 20

6. Question

What are common security threats?

File Shredding

File sharing and permission

File corrupting

File integrity

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Question 7 of 20

7. Question

Multithreading keeps track of:

instructions to execute next

system registers that have the process’ current working variables

a stack containing the execution history.

All of the above

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Question 8 of 20

8. Question

This system reads and reacts in real-time:

Quick Response System

Real-Time System

Time-Sharing System

Batch Processing System

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Incorrect

Question 9 of 20

9. Question

The difference between Linux OS and Windows OS is:

Windows can run with an Intel processor, whereas Linux cannot

Linux is proprietary whereas Windows is not

Linux has multiple versions, but there is only one version of Windows

Any programmer can modify Linux code but this is not possible with Windows

Correct

Incorrect

Question 10 of 20

10. Question

Interprocess communication allows a program to handle:

Multiple user requests

Multiple system requests

all the processors

None of Above

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Incorrect

Question 11 of 20

11. Question

How many types of execution are there?

2

1

3

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Question 12 of 20

12. Question

Which of the following is a multithreading model?

Many to many relationships.

Many to one relationships.

One to one relationship.

All of the above

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Question 13 of 20

13. Question

This is not a memory management technique:

Single Contiguous Allocation

Multiple Contiguous Allocation

Paged Memory Management

None of the mentioned

Correct

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Question 14 of 20

14. Question

High memory holds:

user processes

System processes

both a and b

None of these

Correct

Incorrect

Question 15 of 20

15. Question

Synchronization in IPC is handled by:

Communicating processors

CPU

monitor

Communicating processes

Correct

Incorrect

Question 16 of 20

16. Question

Which of the following is true about thrashing?

In thrashing, the CPU is busier in swapping instead of executing the program

Thrashing occurs in contiguous memory allocation techniques

If only a single program resides in memory then only thrashing occurs

none of the given

Correct

Incorrect

Question 17 of 20

17. Question

The worst fit allocates the process to the:

The first block that is sufficient for it in the main memory.

first smallest block among the free partitions.

largest available block in the main memory.

first sufficient block from the last allocation point.

Correct

Incorrect

Question 18 of 20

18. Question

IPC is:

Consistent

Inconvenient

Computational

none of the mentioned

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Question 19 of 20

19. Question

User-level libraries:

provide a simple interface to a program

have device drivers

Have device controllers and device-independent I/O modules.

Have hardware controllers

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Incorrect

Question 20 of 20

20. Question

This communication is established when processes share a common mailbox:

Indirect communication

Direct communication

Independent communication

Dependent communication

Correct

Incorrect

Summary

OS being such an important part of CS, it is important that the student is well versed in this topic and not only in its main components but also the minor ones. The above question provides such insight into the subject.