Which component uses magnetic fields for data storage? MCQ with Answer and Explanation

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Which component uses magnetic fields for data storage?

A. Traditional HDD

B. RAM

C. Cache

D. SSD

Answer: Option A

Solution (By JKSSB Mock Tests)

Platters and read/write heads.

This question belongs to: Computer Computer Hardware

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The best way to clean a keyboard is:

A. Vacuum only

B. Water wash

C. No cleaning

D. Compressed air and isopropyl alcohol carefully

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Correct Answer: Option D

Explanation:
Prevents damage.

This question belongs to: Computer Computer Hardware

Question #2

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What causes input lag in monitors?

A. Processing delay in display

B. Low resolution

C. Brightness

D. High refresh

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Correct Answer: Option A

Explanation:
Important for gaming.

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Question #3

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What is the function of a print head in inkjet?

A. Heat toner

B. Scan image

C. Feed paper

D. Eject ink droplets

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Correct Answer: Option D

Explanation:
Core printing mechanism.

This question belongs to: Computer Computer Hardware

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