What is the purpose of the power-on self-test (POST)? MCQ with Answer and Explanation

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What is the purpose of the power-on self-test (POST)?

A. Loads the OS

B. Checks hardware functionality

C. Checks for viruses

D. Installs drivers

Answer: Option B

Solution (By JKSSB Mock Tests)

POST runs diagnostics on hardware like RAM and drives to ensure they work before booting.

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Practice More Computer Fundamentals Questions

Question #1

What is the binary equivalent of octal 17?

A. 1101

B. 1011

C. 1110

D. 1111

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Correct Answer: Option D

Explanation:
Octal 17 = 1 7 -> 001 111 = 1111 binary.

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Question #2

What is the decimal equivalent of binary 1101?

A. 15

B. 14

C. 12

D. 13

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Correct Answer: Option D

Explanation:
1101 = 8+4+1 = 13.

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Question #3

Which device is an example of an input device?

A. Printer

B. Speaker

C. Keyboard

D. Monitor

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Correct Answer: Option C

Explanation:
A keyboard is an input device used to enter data and instructions into a computer.

This question belongs to: Computer Computer Fundamentals

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