What is ghosting in the context of keyboards? MCQ with Answer and Explanation

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What is ghosting in the context of keyboards?

A. Mouse lag

B. Printer smearing

C. Multiple unintended key presses

D. Monitor issue

Answer: Option C

Solution (By JKSSB Mock Tests)

NKRO (n-key rollover) prevents it.

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SSD stands for:

A. Solid State Drive

B. System Storage Disk

C. Secondary Storage Drive

D. Secure Storage Device

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Correct Answer: Option A

Explanation:
SSD is a faster, non-mechanical storage device using flash memory.

This question belongs to: Computer Computer Hardware

Question #2

What is the benefit of modular power supplies?

A. Slower power delivery

B. Lower cost always

C. No difference

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Correct Answer: Option D

Explanation:
Reduces clutter in PC cases.

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Which technology allows printers to connect via mobile apps?

A. Serial

B. Parallel cable

C. USB only

D. Wi-Fi Direct or cloud services

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Correct Answer: Option D

Explanation:
Modern convenience.

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