What is the typical speed of a 15,000 RPM hard disk drive? MCQ with Answer and Explanation

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What is the typical speed of a 15,000 RPM hard disk drive?

A. Very high performance, used in enterprise servers

B. Common in consumer desktops

C. Used in laptops

D. Only in external drives

Answer: Option A

Solution (By JKSSB Mock Tests)

15,000 RPM drives are high-performance, typically used in enterprise environments for demanding applications, with lower capacities and higher cost.

This question belongs to: Computer Memory and Storage Devices

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Question #1

Which of the following is a type of optical disc that is rewritable?

A. CD-R

B. BD-ROM

C. DVD-R

D. DVD-RW

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Correct Answer: Option D

Explanation:
DVD-RW is rewritable, allowing data to be erased and rewritten multiple times. CD-R and DVD-R are write-once, and BD-ROM is read-only.

This question belongs to: Computer Memory and Storage Devices

Question #2

Which of the following is a type of memory that is manufactured with a mask during production and cannot be altered?

A. PROM

B. EEPROM

C. Mask ROM

D. EPROM

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Correct Answer: Option C

Explanation:
Mask ROM is factory-programmed using a photomask and cannot be changed by the user. PROM can be programmed once, EPROM can be erased with UV, and EEPROM electrically.

This question belongs to: Computer Memory and Storage Devices

Question #3

Which of the following is a type of memory that is non-volatile and used for firmware?

A. RAM

B. DRAM

C. Flash ROM

D. SRAM

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Correct Answer: Option C

Explanation:
Flash ROM is non-volatile and often used for storing firmware (BIOS) because it can be updated electrically.

This question belongs to: Computer Memory and Storage Devices

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