What is the function of a page table in virtual memory? MCQ with Answer and Explanation

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What is the function of a page table in virtual memory?

A. To map virtual pages to physical frames

B. To manage disk I/O

C. To allocate memory to processes

D. To store the contents of cache

Answer: Option A

Solution (By JKSSB Mock Tests)

A page table is a data structure used by the MMU to translate virtual addresses to physical addresses, mapping pages to frames.

This question belongs to: Computer Memory and Storage Devices

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Question #1

What is the purpose of a memory controller in a mobile device?

A. To manage the battery

B. To handle cellular signals

C. To manage the LPDDR memory

D. To control the display

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Correct Answer: Option C

Explanation:
In mobile devices, the memory controller manages the LPDDR (Low-Power DDR) memory, optimizing power consumption and performance.

This question belongs to: Computer Memory and Storage Devices

Question #2

Which of the following is an example of non-volatile memory?

A. L2 Cache

B. ROM

C. DRAM

D. SRAM

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Correct Answer: Option B

Explanation:
ROM (Read-Only Memory) is non-volatile as it retains its data even when the device is completely powered off.

This question belongs to: Computer Memory and Storage Devices

Question #3

What is the capacity of a standard CD-ROM?

A. 25 GB

B. 4.7 GB

C. 650-700 MB

D. 120 MB

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Correct Answer: Option C

Explanation:
A standard CD-ROM holds about 650 to 700 MB of data (or 74-80 minutes of audio). DVD holds 4.7 GB, and Blu-ray 25 GB.

This question belongs to: Computer Memory and Storage Devices

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