What does the term 'M.2' refer to in storage devices? MCQ with Answer and Explanation

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What does the term 'M.2' refer to in storage devices?

A. A type of RAM

B. A connector for hard disks

C. A form factor for SSDs

D. A file system

Answer: Option C

Solution (By JKSSB Mock Tests)

M.2 is a form factor for internal expansion cards, commonly used for SSDs, offering compact size and support for NVMe or SATA interfaces.

This question belongs to: Computer Memory and Storage Devices

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Question #1

What is the typical capacity of a DVD-RW disc?

A. 700 MB

B. 8.5 GB

C. 25 GB

D. 4.7 GB

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Correct Answer: Option D

Explanation:
DVD-RW has a capacity of 4.7 GB (single-layer). Dual-layer rewritable discs exist but are less common.

This question belongs to: Computer Memory and Storage Devices

Question #2

Which of the following is a type of non-volatile memory that can be rewritten many times?

A. PROM

B. EPROM

C. Mask ROM

D. Flash memory

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Correct Answer: Option D

Explanation:
Flash memory is non-volatile and can be erased and rewritten many times, making it suitable for SSDs and USB drives.

This question belongs to: Computer Memory and Storage Devices

Question #3

Which of the following is a type of memory that is directly accessible by the CPU without address translation?

A. Physical memory

B. Registers

C. Cache memory

D. Virtual memory

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Correct Answer: Option B

Explanation:
Registers are directly accessible by the CPU's execution units; they are part of the CPU. Physical memory (RAM) is accessed via addresses, and virtual memory requires translation.

This question belongs to: Computer Memory and Storage Devices

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