A common wireless input device is: MCQ with Answer and Explanation

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A common wireless input device is:

A. VGA monitor

B. Bluetooth mouse

C. Wired keyboard

D. USB scanner

Answer: Option B

Solution (By JKSSB Mock Tests)

Bluetooth enables wireless connectivity.

This question belongs to: Computer Computer Hardware

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Question #1

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What technology is used in most modern keyboards to detect key presses?

A. Capacitive sensing

B. Membrane technology

C. Mechanical switches

D. Optical sensors

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Correct Answer: Option B

Explanation:
Membrane keyboards are common in standard office setups due to affordability, though mechanical are also popular.

This question belongs to: Computer Computer Hardware

Question #2

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What feature do many modern printers have for security?

A. Fingerprint only

B. Secure print with PIN

C. No security

D. Open access only

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Correct Answer: Option B

Explanation:
Prevents unauthorized printing.

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Question #3

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Which keyboard layout is most commonly used in India?

A. QWERTY

B. Colemak

C. AZERTY

D. DVORAK

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Correct Answer: Option A

Explanation:
QWERTY is the standard keyboard layout.

This question belongs to: Computer Computer Hardware

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