Which of the following is a type of memory that uses a rotating disk? MCQ with Answer and Explanation

Which of the following is a type of memory that uses a rotating disk?
A. Hard disk
B. RAM
C. Flash memory
D. SSD
Answer: Option A
Solution (By JKSSB Mock Tests)
Hard disk drives use rotating platters to store data magnetically. SSDs and flash memory have no moving parts.

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Practice More Memory and Storage Devices Questions

Question #1
What is the function of a page file (swap file) in virtual memory?
A. To speed up file access
B. To provide a backup of the operating system
C. To store data that is not currently in physical RAM on disk
D. To manage cache memory

Correct Answer: Option C


Explanation:
The page file is a portion of the hard disk used as additional RAM (swap space) for virtual memory, allowing the system to move inactive pages out of physical RAM.

This question belongs to: Computer Memory and Storage Devices
Question #2
What is the typical capacity of a CD-RW disc?
A. 700 MB
B. 800 MB
C. 650 MB
D. 1 GB

Correct Answer: Option A


Explanation:
Standard CD-RW discs have a capacity of 700 MB (80 minutes).

This question belongs to: Computer Memory and Storage Devices
Question #3
Which level of cache memory is typically shared among multiple cores of a modern multi-core CPU architecture?
A. L3 Cache
B. L0 Cache
C. L1 Cache
D. L2 Cache

Correct Answer: Option A


Explanation:
While L1 and L2 caches are generally dedicated to individual CPU cores, the L3 cache is larger, slightly slower, and shared across all cores on the processor die.

This question belongs to: Computer Memory and Storage Devices