What is the purpose of a memory page? MCQ with Answer and Explanation

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What is the purpose of a memory page?

A. A section of cache

B. A file on disk

C. A physical block of RAM

D. A fixed-size block of virtual memory

Answer: Option D

Solution (By JKSSB Mock Tests)

In virtual memory, a page is a fixed-size block of virtual memory that can be mapped to a physical frame in RAM or stored on disk.

This question belongs to: Computer Memory and Storage Devices

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Question #1

What is the typical capacity of a 2.5-inch hard disk drive used in laptops?

A. 1-2 GB

B. 500 GB to 2 TB

C. 4-8 TB

D. 10-100 GB

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Correct Answer: Option B

Explanation:
2.5-inch HDDs commonly range from 500 GB to 2 TB for laptops, with larger capacities available. 3.5-inch drives typically have higher capacities (up to 10 TB+).

This question belongs to: Computer Memory and Storage Devices

Question #2

What is the typical transfer rate of a USB 2.0 flash drive?

A. 480 Mbps

B. 5 Gbps

C. 60 MB/s

D. 10 Gbps

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Correct Answer: Option A

Explanation:
USB 2.0 has a maximum signaling rate of 480 Mbps (megabits per second), which translates to about 60 MB/s theoretical, but actual is less.

This question belongs to: Computer Memory and Storage Devices

Question #3

Which of the following describes an optical storage medium that features pre-recorded data that can never be modified or erased by the user?

A. DVD+RW

B. CD-ROM

C. CD-R

D. CD-RW

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Correct Answer: Option B

Explanation:
A CD-ROM (Read-Only Memory) is manufactured with pre-stamped physical pits, meaning the stored information is immutable and cannot be rewritten.

This question belongs to: Computer Memory and Storage Devices

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