Which of the following is not a factor affecting the performance of a hard disk? MCQ with Answer and Explanation

Which of the following is not a factor affecting the performance of a hard disk?
A. Interface type
B. Rotational speed
C. Memory bus speed
D. Seek time
Answer: Option C
Solution (By JKSSB Mock Tests)
Memory bus speed affects the communication between CPU and RAM, not directly the hard disk performance. HDD performance depends on rotational speed, seek time, and interface type (SATA, SAS, etc.).

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Memory and Storage Devices Questions

Question #1
What is the role of a memory management unit (MMU)?
A. To translate virtual addresses to physical addresses
B. To increase the memory capacity
C. To manage cache memory
D. To handle disk I/O

Correct Answer: Option A


Explanation:
The MMU is a hardware component that translates virtual memory addresses used by the CPU into physical addresses in RAM, enabling virtual memory and protection.

This question belongs to: Computer Memory and Storage Devices
Question #2
Which of the following is a typical latency value for DDR4 RAM?
A. CL18-CL22
B. CL14-CL16
C. CL9-CL11
D. CL30-CL36

Correct Answer: Option B


Explanation:
DDR4 common CAS latencies are around 14-16, though higher speeds may have CL18-22. DDR3 had CL9-11. DDR5 is higher (CL30+). So A is correct for typical DDR4.

This question belongs to: Computer Memory and Storage Devices
Question #3
What is the typical capacity of a single-layer BD-R (Blu-ray recordable) disc?
A. 50 GB
B. 4.7 GB
C. 128 GB
D. 25 GB

Correct Answer: Option D


Explanation:
Single-layer BD-R holds 25 GB, dual-layer 50 GB, and triple-layer 100 GB or more. Standard Blu-ray is 25 GB.

This question belongs to: Computer Memory and Storage Devices