Biometric input devices enhance: MCQ with Answer and Explanation

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Biometric input devices enhance:

A. Security through unique traits

B. Display quality

C. Cooling

D. Printing speed

Answer: Option A

Solution (By JKSSB Mock Tests)

Fingerprint, face, iris etc.

This question belongs to: Computer Computer Hardware

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Question #1

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What is a common input device in factories for inventory?

A. Touchscreen only

B. Keyboard only

C. RFID reader or barcode scanner

D. Mouse

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Correct Answer: Option C

Explanation:
Efficient for tracking.

This question belongs to: Computer Computer Hardware

Question #2

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Which device converts mechanical movement into digital signals?

A. Printer

B. Scanner

C. Monitor

D. Mouse or joystick

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Correct Answer: Option D

Explanation:
Pointing devices translate movement.

This question belongs to: Computer Computer Hardware

Question #3

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A sheet-fed scanner is efficient for:

A. Photos only

B. 3D objects

C. Stacks of loose documents

D. Bound books

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Correct Answer: Option C

Explanation:
High throughput.

This question belongs to: Computer Computer Hardware

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