Operating System MCQ

Operating System MCQ | Freshers & Experienced

  • Sharad Jaiswal
  • 12th Feb, 2021

We have listed here the best Operating System MCQ Questions for your basic knowledge of Operating systems. This Operating System MCQ Test contains 30 Multiple Choice Questions. You have to select the right answer to every question.

Operating System Multiple Choice Questions

1) If there are multiple recycle bin for hard disk?

  • A. You can set different size for each recycle bin
  • B.You can choose which recycle bin to use to store your deleted files
  • C.You can make any one of them default recycle bin
  • D.None of above

2) Identify false statement?

  • A. You can find deleted files in recycle bin
  • B.You can increase free space of disk by sending files in recycle bin
  • C.You can restore any files in recycle bin if you ever need
  • D.You can right click and choose Empty Recycle Bin to clean it at once

3) If the display system time and date is wrong, you can reset it using

  • A. Write
  • B.Calendar
  • C.Control panel
  • D.Write file

4) You should save your computer from

  • A. Viruses
  • B.Time bombs
  • C.Worms
  • D.All of the above

5) World Wide Web is being standard by

  • A. Worldwide corporation
  • B.World Wide Consortium
  • C.W3C
  • D.World Wide Web Standard

6) Two basic systems of operating system are

  • A. Batch and timesharing
  • B.Sequential and direct
  • C.Sequential and realtime
  • D.Batch and interactive

7) Daisy chain is a device for

  • A. Connecting a number of devices to a controller
  • B.Connecting a number of controllers to a device
  • C.Interconnecting a number of devices to a number of controllers
  • D.All of the above

8) In which of the following the most common systems security method is

  • A. Encryption
  • B.Passwords
  • C.Firewall
  • D.All of the above

9) Under multi-programming, turnaround time for short jobs is usually _________ and that for long jobs is slightly _______

  • A. shortened; shortened
  • B.shortened; lengthened
  • C.lengthened; shortened
  • D.lengthened; lengthened

10) Why block caches or buffer caches are used?

  • A. to speed up main memory read operation
  • B.to increase the capacity of the main memory
  • C.to handle interrupts
  • D.to improve disk performance

11) Which of the following refers to the associative memory?

  • A. the data are accessed sequentially
  • B.the address of the data is generated by the CPU
  • C.the address of the data is supplied by the users
  • D.there is no need for an address i.e. the data is used as an address

12) The table created by lexical analysis to describe all literals used in the source program, is

  • A. Identifier table
  • B.Terminal table
  • C.Literal table
  • D.Reductions

13) What is the size of ROM if it is used to store the table for multiplication of two 8 - bit unsigned integers?

  • A. 64k x 16
  • B.64k x 8
  • C.64k x 16
  • D.4k x 8

14) What is the use of thrashing?

  • A. It decreases the degree of multiprogramming
  • B.It implies excessive page I/O
  • C.It reduces page I/O
  • D.It improves system performance

15) What is the main function of command interpreter?

  • A. to get and execute the next user-specified command
  • B.to handle the files in the operating system
  • C.to provide the interface between the API and application program
  • D.None of the mentioned

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