MCQ Practice

Computer & IT MCQs

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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.

Practice Important Questions

This section provides important MCQs with answers and explanations to help candidates prepare effectively for CSS, PMS, and other competitive exams.

Improve Conceptual Understanding

Each MCQ is designed to strengthen your understanding of key concepts and improve analytical thinking required in exams.

Exam-Oriented Preparation

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Useful for CSS and PMS Exams

This collection is highly beneficial for CSS, PMS, and other competitive exams, improving accuracy and confidence.