Operating System(Computer Aptitude ) Questions and Answers

Question 1.

It runs on computer hardware and serve as platform for other software to run on

  1.    operating system
  2.    application software
  3.    programs
  4.    peripherals
  5.    None of these
Explanation:-
Answer: Option A. -> operating system
Question 2.

It is also a layer of a computer system between the hardware and the user program

  1.    operating environment
  2.    operating system
  3.    system environment
  4.    application software
  5.    None of the above
Explanation:-
Answer: Option B. -> operating system
Question 3.

The primary purpose of an operating system is

  1.    to make the most efficient use of the computer hardware
  2.    to allow people to use the computer
  3.    to keep systems programmers employed
  4.    to make computers easier to use
  5.    None of the above
Explanation:-
Answer: Option A. -> to make the most efficient use of the computer hardware
Question 4.

Which of the following system is built directly on the hardware?

  1.    Environment
  2.    System
  3.    Operating
  4.    Processing
  5.    None of these
Explanation:-
Answer: Option C. -> Operating
Question 5.

Multiprogramming systems

  1.    are easier to develop than single programming systems  
  2.    execute each job faster
  3.    execute more jobs in the same time period
  4.    2’ and ‘3’
  5.    None of the above
Explanation:-
Answer: Option D. -> 2’ and ‘3’
Question 6.

It is the first program run on a computer, when the computer boots up

  1.    system software
  2.    operating system
  3.    system operations
  4.    processing system
  5.    None of the above
Explanation:-
Answer: Option B. -> operating system
Question 7.

Which of the following interface consists of things like program counter, registers, interrupts and terminals?

  1.    Hardware
  2.    Software
  3.    Data
  4.    Application Software
  5.    (1) and (2)
Explanation:-
Answer: Option A. -> Hardware
Question 8.

It shares characteristics with both hardware and software

  1.    operating system
  2.    software
  3.    data
  4.    utility
  5.    hardware
Explanation:-
Answer: Option A. -> operating system
Question 9.

Which of the following is used in operating system to separate mechanism from policy?

  1.    Single level implementation
  2.    Two level implementation
  3.    Multi level implementation
  4.    Bi-level implementation
  5.    None of the above
Explanation:-
Answer: Option C. -> Multi level implementation
Question 10.

Which file in MS DOS contains internal commands that are loaded during booting process?

  1.    10.SYS
  2.    MS DOS.SYS 
  3.    COMMAND.COM
  4.    CONFIG.SYS
  5.    None of these
Explanation:-
Answer: Option C. -> COMMAND.COM
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