What is the approximate read speed of a typical SATA III SSD? MCQ with Answer and Explanation

Question
What is the approximate read speed of a typical SATA III SSD?
A. 50 MB/s
B. 5 GB/s
C. 50 GB/s
D. 500 MB/s
Answer: Option D
Solution (By JKSSB Mock Tests)
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
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Practice More Memory and Storage Devices Questions

Question #1
What is the typical speed of a 7200 RPM hard disk in terms of average rotational latency?
A. 4.16 ms
B. 5.5 ms
C. 2.5 ms
D. 8.33 ms
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Correct Answer: Option A

Explanation:
Average rotational latency is half of the rotation period. For 7200 RPM, the disk rotates once every 8.33 ms, so average latency is 4.17 ms (approximately).
This question belongs to: Computer Memory and Storage Devices
Question #2
What does the term 'seek time' refer to in a hard disk drive?
A. Time to transfer data to the computer
B. Time to move the head to the correct track
C. Time to read data from the sector
D. Time to rotate the disk
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Correct Answer: Option B

Explanation:
Seek time is the time taken for the read/write head to move to the correct track (cylinder) on the platter where the data is stored.
This question belongs to: Computer Memory and Storage Devices
Question #3
How many Kilobytes (KB) constitute exactly one Gigabyte (GB) in standard binary computing notation?
A. 512,000 KB
B. 1,048,576 KB
C. 1,024 KB
D. 1,000,000 KB
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Correct Answer: Option B

Explanation:
Since 1 MB = 1024 KB and 1 GB = 1024 MB, multiplying 1024 by 1024 gives exactly 1,048,576 Kilobytes in one Gigabyte.
This question belongs to: Computer Memory and Storage Devices
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