Operating Systems MCQs - 1 | 100+ MCQ Questions with Answers

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Operating Systems MCQs - 1

Q 1. Which of the following in not an Operating System?
  1. Mac OS
  2. Windows Explorer
  3. Red Hat
  4. Solaris
Ans: Windows Explorer

Q 2. Which of the following is not a product of Microsoft?
  1. Ubuntu
  2. XP
  3. Vista
  4. ME
Ans: Ubuntu

Q 3. Which of the following is an example of Single Programming Operating System?
  1. MS-DOS
  2. Unix
  3. Windows
  4. Linu
Ans: MS-DOS

Q 4. Which of the following is not the function of Operating System?
  1. Process Management
  2. Memory Management
  3. Device Management
  4. Clock Management
Ans: Clock Management

Q 5. Main function of shared memory is:
  1. to use primary memory efficently
  2. to do intra process communication
  3. to do inter process communication
  4. none of above
Ans: to do inter process communication

Q 6. Which scheduling policy is best suited for time-sharing operating systems
  1. Shortest job first
  2. Round robin
  3. First come first serve
  4. Elevator
Ans: Round robin

Q 7. The first computer did not have
  1. Vaccume tube
  2. Operating system
  3. Magnetic Disk
  4. None
Ans: operating system

Q 8. An _____________is a software program that manage H/w and S/w recources of computer
  1. Operating system
  2. application
  3. IPC
  4. None
Ans: Operating system

Q 9. A ____________ is normally organise into directories for easy navigation and usage
  1. File system
  2. Operating System
  3. Directory system
  4. all
Ans: File system

Q 10. Memory Management refers to managment of primary Memory or 
  1. Main Memory
  2. Secondary Memory
  3. Virtual Memory
  4. All of above
Ans: Main Memory

Q 11. What is the maximum length of the filename in DOS?
  1. 4
  2. 6
  3. 8
  4. 12
Ans: 8

Q 12. When was the first operating system developed?
  1. 1948
  2. 1949
  3. 1950
  4. 1951
Ans: 1950

Q 13. When does page fault occur?
  1. The page is present in memory.
  2. The deadlock occurs
  3. The page does not present in memory.
  4. The buffering occurs
Ans: The page does not present in memory.

Q 14. What else is a command interpreter called?
  1. prompt
  2. kernel
  3. shell
  4. command
Ans: shell

Q 15. BIOS is used?
  1. By operating system
  2. By compiler
  3. By interpreter
  4. By application software
Ans: By operating system

Q 16. What is the mean of the Booting in the operating system?
  1. Restarting computer
  2. Install the program
  3. To scan
  4. To turn off
Ans: Restarting computer

Q 17. Multi-processor system gives a
  1. small system
  2. tightly coupled system
  3. loosely coupled system
  4. both a and b
Ans: tightly coupled system

Q 18. Another type of multiple-CPU system is the
  1. mini Computer
  2. Super Computer
  3. Clustered System
  4. both a and b
Ans: Clustered System

Q 19. Banker's algorithm is used?
  1. To prevent deadlock
  2. To deadlock recovery
  3. To solve the deadlock
  4. None of these
Ans: To prevent deadlock

Q 20. Main Memory refers to a________ memory that is the internal memory to the computer
  1. virtual
  2.  physical
  3. short
  4. flash
Ans:  physical

Q 21. ________ is the process of bringing in each process in main memory
  1. Paging
  2. Booting
  3. Swapping
  4. Poping
Ans: Swapping

Q 22. ________ occurs in a dynamic memory allocation system when most of the free blocks are too small to satisfy any request.
  1. Fragmentation
  2. Detection
  3. Looping
  4. Swapping
Ans: Fragmentation

Q 23. The difference between allocated and required memory is known as ___________
  1. External fragmentation
  2. Internal fragmentation
  3. Overall Fragmentation
  4. General Fragmentation
Ans: Internal fragmentation

Q 24. Physical memory is divided into blocks of equal size called _______
  1. Sheets
  2. Memory
  3. Docs
  4. Pages
Ans: Pages

Q 25. A _____ Table is the data structure used by a virtual memory system
  1. Page
  2. Track
  3. Sector
  4. Partition
Ans: Page

Q 26. A Page Table is to store the mapping between _____address and physical addresses.
  1. main
  2. external
  3. internal
  4. virtual 
Ans: virtual 

Q 27. Segmentation allows breaking of the virtual address space of a single process into _________
  1. pages
  2. segments
  3. partition
  4. block
Ans: pages

Q 28. Logical address have _____ parts
  1. 1
  2. 2
  3. 3
  4. 4
Ans: 3

Q 29. The mapping from virtual address to physical address must be
  1. fast
  2. slow
  3. very slow
  4. very fast
Ans: fast

Q 30. ______ is a unique tag, usually a number identifies the file within the file system.
  1. File identifier
  2. File name
  3. File type
  4. File space
Ans: File identifier

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