Which of the following is a characteristic of a memory cache's associativity? MCQ with Answer and Explanation

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Which of the following is a characteristic of a memory cache's associativity?

A. It determines how many cache lines map to a main memory block

B. It determines the cache speed

C. It determines the replacement policy

D. It determines the cache size

Answer: Option A

Solution (By JKSSB Mock Tests)

Associativity defines the number of places in cache where a given main memory block can be stored, affecting hit rate and complexity.

This question belongs to: Computer Memory and Storage Devices

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What is the typical capacity of a DVD-R disc?

A. 700 MB

B. 25 GB

C. 8.5 GB

D. 4.7 GB

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Correct Answer: Option D

Explanation:
DVD-R (single-layer) holds 4.7 GB. Dual-layer DVD-R DL holds 8.5 GB.

This question belongs to: Computer Memory and Storage Devices

Question #2

What is the approximate read speed of a typical SATA III SSD?

A. 50 GB/s

B. 500 MB/s

C. 5 GB/s

D. 50 MB/s

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Correct Answer: Option B

Explanation:
SATA III SSDs typically achieve sequential read speeds around 500-550 MB/s, limited by the SATA III interface (600 MB/s max). NVMe SSDs are faster.

This question belongs to: Computer Memory and Storage Devices

Question #3

Which characteristic makes Static RAM (SRAM) different from Dynamic RAM (DRAM)?

A. SRAM is volatile while DRAM is non-volatile.

B. SRAM uses flip-flops to store data and does not require continuous refreshing.

C. SRAM is slower than DRAM.

D. SRAM is cheaper and denser than DRAM.

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Correct Answer: Option B

Explanation:
SRAM uses flip-flops to retain data as long as power is supplied, making it faster and eliminating the need for periodic refreshing cycles unlike DRAM.

This question belongs to: Computer Memory and Storage Devices

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