Biometric input devices enhance: MCQ with Answer and Explanation

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Biometric input devices enhance:

A. Display quality

B. Printing speed

C. Cooling

D. Security through unique traits

Answer: Option D

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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Which of the following is a volatile storage device?

A. RAM

B. SSD

C. CD-ROM

D. Flash Drive

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Correct Answer: Option A

Explanation:
RAM loses data without power.

This question belongs to: Computer Computer Hardware

Question #2

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The PCIe lanes are used for:

A. Low speed peripherals

B. High bandwidth connections to GPU and SSDs

C. Power only

D. Audio

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Correct Answer: Option B

Explanation:
Scalable high-speed interface.

This question belongs to: Computer Computer Hardware

Question #3

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RFID tags are read using:

A. Optical scanners

B. Thermal sensors

C. Radio frequency input devices

D. Magnetic readers

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Correct Answer: Option C

Explanation:
Contactless identification.

This question belongs to: Computer Computer Hardware

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