High PPI (pixels per inch) in monitors provides: MCQ with Answer and Explanation

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High PPI (pixels per inch) in monitors provides:

A. Lower resolution

B. Sharper images

C. Larger size

D. Higher power use always

Answer: Option B

Solution (By JKSSB Mock Tests)

Retina-like displays.

This question belongs to: Computer Computer Hardware

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What is a common input device in factories for inventory?

A. Touchscreen only

B. RFID reader or barcode scanner

C. Keyboard only

D. Mouse

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Correct Answer: Option B

Explanation:
Efficient for tracking.

This question belongs to: Computer Computer Hardware

Question #2

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A common interface for external storage is:

A. VGA

B. Parallel port

C. PS/2

D. USB 3.2 or Thunderbolt

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Correct Answer: Option D

Explanation:
Fast data transfer.

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Question #3

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What is 'core voltage' in CPU context?

A. Power supply voltage to processor cores

B. Memory voltage

C. Graphics voltage

D. Monitor voltage

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Correct Answer: Option A

Explanation:
Affects stability and power.

This question belongs to: Computer Computer Hardware

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