What is the typical storage capacity of a standard DVD? MCQ with Answer and Explanation

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What is the typical storage capacity of a standard DVD?

A. 700 MB

B. 25 GB

C. 4.7 GB

D. 128 GB

Answer: Option C

Solution (By JKSSB Mock Tests)

A standard single-layer DVD holds about 4.7 GB (or 4.38 GiB) of data. A CD holds ~700 MB, Blu-ray single layer ~25 GB, and pen drives vary.

This question belongs to: Computer Memory and Storage Devices

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Question #1

Which of the following is a characteristic of a hard disk's platter?

A. It is made of silicon

B. It is a non-removable part of an SSD

C. It stores data in flash cells

D. It rotates at a constant speed

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Correct Answer: Option D

Explanation:
Platters in a hard disk rotate at a constant speed (e.g., 7200 RPM). They are made of aluminum/glass with magnetic coating, not silicon, and are used in HDDs, not SSDs.

This question belongs to: Computer Memory and Storage Devices

Question #2

Which statement is true regarding Solid State Drives (SSDs) compared to Hard Disk Drives (HDDs)?

A. SSDs consume more power than HDDs.

B. SSDs are less resistant to physical shocks than HDDs.

C. SSDs have moving mechanical parts and are slower.

D. SSDs use flash memory and offer faster data access speeds.

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Correct Answer: Option D

Explanation:
SSDs use non-volatile flash memory, have no moving parts, and deliver significantly higher read/write speeds compared to traditional HDDs.

This question belongs to: Computer Memory and Storage Devices

Question #3

What does 'S' stand for in the context of SD cards used in smartphones and cameras?

A. Secure Digital

B. Static Digital

C. Speed Digital

D. Serial Digital

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Correct Answer: Option A

Explanation:
SD card stands for Secure Digital card, a proprietary non-volatile memory card format developed for portable devices.

This question belongs to: Computer Memory and Storage Devices

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