What is the function of a cache memory? MCQ with Answer and Explanation

What is the function of a cache memory?
A. To permanently store data
B. To provide backup storage
C. To hold frequently accessed data for quick access
D. To store the operating system
Answer: Option C
Solution (By JKSSB Mock Tests)
Cache memory is a small, fast memory located close to the CPU that stores copies of frequently accessed data from main memory to reduce average access time.

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Practice More Memory and Storage Devices Questions

Question #1
What is the typical capacity of a microSDHC card?
A. 4 GB to 32 GB
B. Up to 512 GB
C. Up to 2 GB
D. 32 GB to 2 TB

Correct Answer: Option A


Explanation:
SDHC (Secure Digital High Capacity) ranges from 4 GB to 32 GB. SDXC goes from 32 GB to 2 TB.

This question belongs to: Computer Memory and Storage Devices
Question #2
What is the typical capacity of a 2.5-inch hard disk drive used in laptops?
A. 10-100 GB
B. 4-8 TB
C. 1-2 GB
D. 500 GB to 2 TB

Correct Answer: Option D


Explanation:
2.5-inch HDDs commonly range from 500 GB to 2 TB for laptops, with larger capacities available. 3.5-inch drives typically have higher capacities (up to 10 TB+).

This question belongs to: Computer Memory and Storage Devices
Question #3
Which of the following is a classic example of a sequential-access data media format?
A. Blu-ray Disc
B. Solid State Drive
C. Magnetic Tape
D. Floppy Disk

Correct Answer: Option C


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