MCQ on Operating System

In this article MCQ on Operating System we give the information about MCQ on Operating System with answer like Swapping the page in main memory only when required is called

MCQ on Operating System:

1:- Which of the following is not an operating system?

1. Windows
2. linux
3. oracle
4. DOS

Answer – Oracle

2:- What is the maximum length of filename in DOS?

1. 4
2. 5
3. 8
4. 12

Answer – 8

3:- When was the first operating system developed?

1. 1948
2. 1949
3. 1950
4. 1951

Answer – In 1950

4:- When was MS Windows operating system proposed?

1. 1994
2. 1990
3. 1992
4. 1995

Answer – 1995

5:- Which of the following is the extension of Notepad?

1. .txt
2. .xls
3. .ppt
4. .bmp

Answer – .txt

6:- What else is command interpreter called?

1. shell
2. 2.prompt
3. 3.kernel
4. command

Answer – shell

7:- Swapping the page in main memory only when required is called-

1. paging
2. demand paging
3. swapping
4. buffering

Answer – demand paging

8:- What is the full name of FAT?

1. File attribute table
2. File allocation table
3. Font attribute table
4. Format allocation table

Answer – file allocation table

9:- BIOS is used for-

1. by operating system
2. by compiler
3. by interpreter
4. by application software

Answer – by operating system

10:- Booting means

1. Restart the computer
2. Installing the Program
3. Scanning
4. To turn off

Answer – Restarting the computer

MCQ on Operating System:

11:- When does page fault occur?

1. When the page exists in memory.
2. When deadlock occurs.
3. When the page is not present in memory
4. When buffering occurs.

Answer- When the page is not present in the memory.

12:- Banker’s algorithm is used.

1. To prevent deadlock
2. For deadlock recovery
3. To solve the deadlock
4. None of these

Answer – To prevent deadlock

13:- After deleting the file, where is it stored?

1. Nowhere
2. In the recycle bin
3. In hard disk
4. In the task bar

Answer – recycle bin

14:- Linux operating system is-

1. Microsoft
2. Windows
3. Open Source
4. None of these

Answer – open source

15:- Full name of DSM is-

1. direct system module
2. direct system memory
3. demoralized system memory
4. distributed shared memory

Answer – distributed shared memory

16:- What is the full name of IDL?

1. interface definition language
2. interface direct language
3. interface definition language
4. interface data library

Answer – interface definition language

17:- What is bootstrapping called?

1. cold boot
2. hot boot
3. cold hot boot
4. cold hot strap

Answer – cold boot

18:- Fence register is used-

1. For disk protection
2. CPU for protection
3. For memory protection
4. None of these

Answer – For memory protection

19:- If the size of the page increases, then internal fragmentation

1. becomes too much
2. becomes less
3. Remains constant.
4. None of these

Answer – becomes more

20:- Which of the following is a single user operating system?

1. Windows
2. mac
3. ms-dos
4. None of these

Answer – MS-DOS

MCQ on Operating System:

21:- The size of virtual memory is based on which of the following?

1. CPU
2. RAM
3. address bus
4. data bus

Answer – address bus

22:- Memory allocation which comes under external fragmentation-

1. Demand Paging
2. swapping
3. segmentation
4. None of these

Answer – segmentation

23:- Which of the following is not application software-

1. Windows 7
2. words
3. Photoshop
4. excel

Answer – Windows 7

24:- Which of the following Windows supports 64 bit-

1. Windows XP
2. Windows 2000
3. Windows 98
4. Windows 95

Answer – Windows XP

25:- Which of the following Windows does not have a start button?

1. Windows 7
2. Windows 8
3. Windows XP
4. None of these

Answer – Windows 8

26:- Which of the following operating systems does not support more than one program at a time?

1. linux
2. Windows
3. unix
4. DOS

Answer – DOS

27:- Which of the following conditions causes deadlock?

1. Mutual exclusion
2. Hold and wait
3. Circular wait
4. No preemption
5. All of these

Answer – All of these

28:- The interface to access the services of the operating system is provided by-

1. API
2. System call
3. LIBRARY
4. Assembly instructions

Answer – system call

29:- Which of the following gives control of the CPU to the short term scheduler to select the process?

1. Interrupt
2. Scheduler
3. Dispatcher
4. None of these

Answer – Dispatcher

30:- Those processes which are ready to execute and wait. Where are they placed in the list?

1. Job queue
2. Ready queue
3. Execution queue
4. Process queue

Answer – ready queue

MCQ on Operating System:

31:- Which of the following algorithms is the one in which CPU is allocated first to the process whose request comes first?

1. Shortest scheduling
2. Priority scheduling
3. First come, first serve scheduling
4. None of these

Answer – first come first serve scheduling

32:- Which of the following can block the running process-

1. Fork
2. Read
3. Down
4. All of these

Answer – All of these

33:- FCFS algorithm is-

1. Non preemptive
2. Pre-emptive
3. These two
4. None of these

Answer – non preemptive

34:- Which of the following does not interrupt the running process-

1. Timer interrupt
2. Device
3. Power failure
4. Scheduling process

Answer: – device

Some More: 

POP- Introduction to Programming Using ‘C’

DS – Data structure Using C

OOP – Object Oriented Programming 

Java Programming

DBMS – Database Management System

RDBMS – Relational Database Management System

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