What is the typical write speed of a DVD-R disc? MCQ with Answer and Explanation

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What is the typical write speed of a DVD-R disc?

A. 4.5 MB/s (1x)

B. 1.32 MB/s (1x)

C. 11.08 MB/s (1x)

D. 36 MB/s (1x)

Answer: Option B

Solution (By JKSSB Mock Tests)

1x DVD data rate is 11.08 Mbit/s = 1.32 MB/s. So write speed at 1x is 1.32 MB/s. Higher multipliers increase speed.

This question belongs to: Computer Memory and Storage Devices

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Question #1

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Which data communication standard provides the thin physical wiring and interface protocol layer for connecting standard internal 2.5-inch hard drives to modern computer motherboards?

A. USB Type-C

B. SATA (Serial ATA)

C. SCSI interface

D. PATA / IDE

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Correct Answer: Option B

Explanation:
SATA (Serial Advanced Technology Attachment) is the standard point-to-point interface bus used to connect internal storage drives (HDDs/SSDs) and optical drives to modern computer systems.

This question belongs to: Computer Memory and Storage Devices

Question #2

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What is the average access time of a hard disk typically composed of?

A. Seek time + Transfer time

B. Seek time + Rotational latency

C. Seek time + Rotational latency + Transfer time

D. Rotational latency + Transfer time

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Correct Answer: Option C

Explanation:
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).

This question belongs to: Computer Memory and Storage Devices