Which technology allows printers to connect via mobile apps? MCQ with Answer and Explanation

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Which technology allows printers to connect via mobile apps?

A. USB only

B. Parallel cable

C. Wi-Fi Direct or cloud services

D. Serial

Answer: Option C

Solution (By JKSSB Mock Tests)

Modern convenience.

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Question #1

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The main reason for using error correction in storage is:

A. Faster speed

B. Reduce cost

C. Increase capacity

D. Data integrity

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Correct Answer: Option D

Explanation:
Prevents data corruption.

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Question #2

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The PCIe lanes are used for:

A. Low speed peripherals

B. Power only

C. High bandwidth connections to GPU and SSDs

D. Audio

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Correct Answer: Option C

Explanation:
Scalable high-speed interface.

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Question #3

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Which memory is directly accessible by CPU?

A. Blu-ray disc

B. Secondary storage

C. Tape drive

D. Registers and cache

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Correct Answer: Option D

Explanation:
CPU accesses registers and cache fastest.

This question belongs to: Computer Computer Hardware

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