What is the average access time of a hard disk typically composed of? MCQ with Answer and Explanation

What is the average access time of a hard disk typically composed of?
A. Seek time + Rotational latency + Transfer time
B. Seek time + Rotational latency
C. Rotational latency + Transfer time
D. Seek time + Transfer time
Answer: Option A
Solution (By JKSSB Mock Tests)
The average access time for a hard disk is the sum of seek time (head movement), rotational latency (waiting for sector), and transfer time (reading/writing data).

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Practice More Memory and Storage Devices Questions

Question #1
What is the function of a memory queue?
A. To hold pending memory requests
B. To manage cache hits
C. To allocate memory
D. To store data permanently

Correct Answer: Option A


Explanation:
A memory queue buffers pending memory requests, allowing the memory controller to schedule them efficiently.

This question belongs to: Computer Memory and Storage Devices
Question #2
Which of the following is a sequential access storage device?
A. Compact Disc
B. Hard Disk Drive
C. Solid State Drive
D. Magnetic Tape

Correct Answer: Option D


Explanation:
Magnetic tapes require data to be read or written sequentially from beginning to end, unlike random-access devices like HDDs, SSDs, and CDs.

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Question #3
Which of the following is a type of memory that is used for storing temporary data in a web browser?
A. Cache memory
B. ROM
C. RAM
D. Hard disk

Correct Answer: Option C


Explanation:
Web browsers store temporary data (cookies, cache) in RAM and also on disk, but the primary temporary storage is RAM for active sessions.

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