What does the term 'cache hit' refer to? MCQ with Answer and Explanation

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What does the term 'cache hit' refer to?

A. Data is not found in the cache

B. Cache is cleared

C. Data is found in the cache

D. Cache is full

Answer: Option C

Solution (By JKSSB Mock Tests)

A cache hit occurs when the CPU requests data and it is found in the cache memory, avoiding the need to access slower main memory.

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 typical speed of a CD-ROM drive at 1x?

A. 150 KB/s

B. 4.5 MB/s

C. 1.32 MB/s

D. 36 MB/s

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Correct Answer: Option A

Explanation:
1x CD speed is 150 KB/s (or 153.6 KB/s for some). DVD 1x is 1.32 MB/s, Blu-ray 1x is 4.5 MB/s.

This question belongs to: Computer Memory and Storage Devices

Question #2

Which phenomenon occurs when a program continuously swaps pages between RAM and secondary storage due to inadequate primary memory space?

A. Fragmentation

B. Thrashing

C. Interleaving

D. Paging

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Correct Answer: Option B

Explanation:
Thrashing occurs when the operating system spends more time moving system resources between virtual and physical memory than actually executing process instructions.

This question belongs to: Computer Memory and Storage Devices

Question #3

Which of the following is a characteristic of static RAM?

A. It is more expensive than DRAM

B. It requires periodic refreshing

C. It is slower than DRAM

D. It is used as main memory in most computers

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Correct Answer: Option A

Explanation:
SRAM is more expensive per bit than DRAM because it uses more transistors per bit. It is faster and does not need refreshing, but is not used as main memory due to cost.

This question belongs to: Computer Memory and Storage Devices

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