Which of the following is a type of memory that can be read and written at high speed but is volatile? MCQ with Answer and Explanation

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Which of the following is a type of memory that can be read and written at high speed but is volatile?

A. Magnetic disk

B. ROM

C. Flash

D. RAM

Answer: Option D

Solution (By JKSSB Mock Tests)

RAM is volatile and can be read and written quickly. ROM and flash are non-volatile, and magnetic disk is slower non-volatile storage.

This question belongs to: Computer Memory and Storage Devices

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Practice More Memory and Storage Devices Questions

Question #1

What is the function of a memory mapper?

A. To manage cache

B. To increase memory speed

C. To map memory addresses to physical locations

D. To control memory refresh

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Correct Answer: Option C

Explanation:
A memory mapper (like MMU) translates logical addresses to physical addresses, or maps memory regions in systems with limited address space.

This question belongs to: Computer Memory and Storage Devices

Question #2

Which of the following represents an explicit example of an optical disk storage system?

A. Digital Versatile Disc (DVD)

B. Magnetic Spool Tape

C. Solid State Drive

D. Internal RAM Module

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Correct Answer: Option A

Explanation:
Digital Versatile Discs (DVDs) store binary code as physical micro-structures read via focused optical laser pickup assemblies.

This question belongs to: Computer Memory and Storage Devices

Question #3

Which architectural component generates the addresses required to fetch instructions from physical memory locations?

A. The Data Bus

B. The Program Counter (PC)

C. The Optical Laser Assembly

D. The Hard Drive Actuator

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Correct Answer: Option B

Explanation:
The Program Counter is a specialized processor register that holds the memory address of the next sequential instruction slated for execution.

This question belongs to: Computer Memory and Storage Devices

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