What is the primary advantage of an SSD over a traditional hard disk? MCQ with Answer and Explanation

What is the primary advantage of an SSD over a traditional hard disk?
A. No moving parts, faster access
B. Longer lifespan
C. Lower cost per GB
D. Higher capacity
Answer: Option A
Solution (By JKSSB Mock Tests)
SSDs have no moving parts and use flash memory, providing much faster read/write speeds and lower latency compared to HDDs, which rely on spinning platters and mechanical heads.

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Practice More Memory and Storage Devices Questions

Question #1
What is the primary purpose of a memory hierarchy in a computer system?
A. To increase storage capacity
B. To simplify the architecture
C. To balance speed, cost, and capacity
D. To reduce cost

Correct Answer: Option C


Explanation:
The memory hierarchy is designed to provide a trade-off between speed (fast but expensive) and capacity (slow but cheap), optimizing overall system performance and cost.

This question belongs to: Computer Memory and Storage Devices
Question #2
Which memory is closest to the CPU in the memory hierarchy?
A. Cache memory
B. Registers
C. RAM
D. Hard disk

Correct Answer: Option B


Explanation:
Registers are the fastest and closest memory to the CPU, located inside the processor core. Cache is next, then RAM, then hard disk.

This question belongs to: Computer Memory and Storage Devices
Question #3
What is the maximum storage capacity of a standard dual-layer DVD?
A. 8.5 GB
B. 4.7 GB
C. 15 GB
D. 9.4 GB

Correct Answer: Option A


Explanation:
A dual-layer DVD (DVD-9) holds about 8.5 GB (or 7.95 GiB). Single-layer is 4.7 GB. Some double-sided DVDs have more, but standard dual-layer is 8.5 GB.

This question belongs to: Computer Memory and Storage Devices