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MCQ Practice

Computer & IT MCQs

DOS cannot retrieve any data from a disk if a computer virus corrupts its ____.

  • A. Directory Area
  • B. Data Area
  • C. BAT Files
  • D. File Allocation Table (FAT)
Explanation:
Corruption of the File Allocation Table prevents data retrieval.

What type of operating system MS-DOS is ____.

  • A. Command Line Interface
  • B. Graphical User Interface
  • C. Multitasking
  • D. Menu Driven Interface
Explanation:
MS-DOS is a command-line interface operating system.

Which is not a multitasking operating system?

  • A. Windows
  • B. DOS
  • C. Linux
  • D. None of these
Explanation:
MS-DOS is not a multitasking operating system.

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

  • A. Linux
  • B. Windows 7
  • C. MS-DOS
  • D. Windows NT
Explanation:
MS-DOS is a single-user operating system.

What do we have to do after the installation of a driver?

  • A. Shutdown
  • B. Restart
  • C. Sleep
  • D. Restore
Explanation:
The computer must be restarted after installing a new driver.

In which type of operating system are time intervals for processing and responding to inputs very small?

  • A. Distributed operating system
  • B. Network operating system
  • C. Real-time operating system
  • D. Time-sharing operating system
Explanation:
Real-time OS guarantees very small response times.

When the name of the operating system that reads and reacts in terms of actual time ____.

  • A. Quick response system
  • B. Real-Time System
  • C. Time-sharing system
  • D. None of these
Explanation:
Real-time operating systems respond instantly to inputs.

The process of starting an operating system is known as ____. ____.

  • A. Booting
  • B. Starting
  • C. Loading
  • D. Turn on
Explanation:
Booting is the process of loading the operating system.

The Computer cannot boot if it does not have the ____.

  • A. Loader
  • B. Operating system
  • C. Assembler
  • D. None of these
Explanation:
Without an operating system, the computer cannot boot.

Which program is run by BIOS to check that hardware components are working properly while the computer is turned ON?

  • A. DMOS
  • B. POST
  • C. CMOS
  • D. RIP
Explanation:
POST (Power On Self Test) checks hardware during startup.