Which of the following is a volatile memory type? MCQ with Answer and Explanation

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Which of the following is a volatile memory type?

A. Flash memory

B. ROM

C. SRAM

D. Magnetic disk

Answer: Option C

Solution (By JKSSB Mock Tests)

SRAM is volatile, meaning it loses data when power is removed. Flash, ROM, and magnetic disk are non-volatile.

This question belongs to: Computer Memory and Storage Devices

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Question #1

Which of the following is a type of memory that is non-volatile and used for firmware?

A. SRAM

B. Flash ROM

C. DRAM

D. RAM

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Correct Answer: Option B

Explanation:
Flash ROM is non-volatile and often used for storing firmware (BIOS) because it can be updated electrically.

This question belongs to: Computer Memory and Storage Devices

Question #2

Which of the following is a classic example of a sequential-access data media format?

A. Blu-ray Disc

B. Magnetic Tape

C. Floppy Disk

D. Solid State Drive

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Correct Answer: Option B

Explanation:
Magnetic tape systems lack addressable coordinate sectors, forcing the drive mechanism to advance or rewind linearly through the tape roll to reach a specific block.

This question belongs to: Computer Memory and Storage Devices

Question #3

Which type of memory is directly accessible by the CPU without going through the bus?

A. RAM

B. Hard disk

C. Cache

D. Registers

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Correct Answer: Option D

Explanation:
Registers are internal to the CPU and are directly accessible by the CPU's arithmetic/logic unit, providing the fastest possible access.

This question belongs to: Computer Memory and Storage Devices

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