A fingerprint sensor is an example of: MCQ with Answer and Explanation

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A fingerprint sensor is an example of:

A. Storage device

B. Output device

C. Biometric input device

D. Processing unit

Answer: Option C

Solution (By JKSSB Mock Tests)

For security authentication.

This question belongs to: Computer Computer Hardware

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Question #1

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Which device is used for voice input?

A. Microphone

B. Speaker

C. Printer

D. Scanner

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Correct Answer: Option A

Explanation:
Microphones convert sound to digital input.

This question belongs to: Computer Computer Hardware

Question #2

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A barcode scanner uses:

A. Ink detection

B. Magnetic fields

C. Laser or camera to read codes

D. Thermal sensors

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Correct Answer: Option C

Explanation:
Optical recognition.

This question belongs to: Computer Computer Hardware

Question #3

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Which bus is used for data transfer inside CPU?

A. Internal bus or front side bus

B. External bus

C. Control bus

D. Address bus only

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Correct Answer: Option A

Explanation:
Internal buses connect CPU components.

This question belongs to: Computer Computer Hardware

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