Which of the following is a characteristic of a read-only memory (ROM)? MCQ with Answer and Explanation

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Which of the following is a characteristic of a read-only memory (ROM)?

A. Data can be modified easily

B. It is used as main memory

C. Data is permanent and cannot be changed by normal operations

D. It is volatile

Answer: Option C

Solution (By JKSSB Mock Tests)

ROM is non-volatile and its contents are typically fixed during manufacturing or programming; it cannot be changed by normal system operations.

This question belongs to: Computer Memory and Storage Devices

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Question #1

What is the purpose of memory interleaving?

A. To reduce power consumption

B. To increase memory capacity

C. To improve memory access speed by using multiple memory banks

D. To provide error correction

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Correct Answer: Option C

Explanation:
Memory interleaving spreads memory addresses across multiple memory banks, allowing simultaneous access to different banks and improving overall throughput.

This question belongs to: Computer Memory and Storage Devices

Question #2

Which memory unit corresponds exactly to 1024 Terabytes?

A. 1 Petabyte

B. 1 Gigabyte

C. 1 Zettabyte

D. 1 Exabyte

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Correct Answer: Option A

Explanation:
1 Petabyte (PB) is equivalent to 1024 Terabytes (TB) according to binary memory measurements.

This question belongs to: Computer Memory and Storage Devices

Question #3

What is the typical capacity of a standard microSD card?

A. Up to 512 GB (common)

B. Up to 32 GB

C. Up to 2 TB (standard SDXC)

D. Up to 2 GB

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Correct Answer: Option A

Explanation:
MicroSD cards are available in many capacities; SDHC up to 32 GB, SDXC up to 2 TB, but common sizes in 2026 are 16, 32, 64, 128, 256, 512 GB. So 512 GB is a typical large capacity.

This question belongs to: Computer Memory and Storage Devices

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