What technology allows printers to print without a computer? MCQ with Answer and Explanation

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What technology allows printers to print without a computer?

A. Cloud printing or direct Wi-Fi

B. Parallel port

C. USB only

D. Serial port

Answer: Option A

Solution (By JKSSB Mock Tests)

Modern smart printers support it.

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What causes image retention in OLED monitors?

A. Low resolution

B. High brightness only

C. Wrong cable

D. Static images over long periods

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Correct Answer: Option D

Explanation:
Pixel wear issue mitigated by features.

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Question #2

The best monitor for color-critical work is typically:

A. OLED for office

B. TN panel

C. Basic LED

D. IPS with wide gamut and calibration support

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Correct Answer: Option D

Explanation:
Accurate reproduction.

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Question #3

What does the 'dpi' setting affect in a mouse?

A. Wireless range

B. Sensitivity and cursor speed

C. Battery life

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Correct Answer: Option B

Explanation:
Higher DPI means more sensitive mouse movement.

This question belongs to: Computer Computer Hardware

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