What is the purpose of a memory test during POST? MCQ with Answer and Explanation

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What is the purpose of a memory test during POST?

A. To clear memory contents

B. To measure memory speed

C. To optimize memory settings

D. To verify that RAM is functioning correctly

Answer: Option D

Solution (By JKSSB Mock Tests)

During Power-On Self-Test (POST), the system checks the RAM to ensure it is functional and can be used by the system.

This question belongs to: Computer Memory and Storage Devices

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Question #1

What is the storage capacity of a standard single-layer Blu-ray Disc?

A. 4.7 GB

B. 25 GB

C. 50 GB

D. 8.5 GB

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Correct Answer: Option B

Explanation:
A standard single-layer Blu-ray disc can hold up to 25 GB of data, whereas dual-layer versions can store up to 50 GB.

This question belongs to: Computer Memory and Storage Devices

Question #2

What is the function of the 'read' operation in memory?

A. To retrieve data from a memory location

B. To store data to a memory location

C. To clear a memory location

D. To move data between registers

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Correct Answer: Option A

Explanation:
A read operation fetches data from a specified memory address and transfers it to the CPU or another component.

This question belongs to: Computer Memory and Storage Devices

Question #3

Which of the following is a non-volatile memory technology that retains data even when power is off?

A. SRAM

B. SDRAM

C. Flash memory

D. DRAM

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Correct Answer: Option C

Explanation:
Flash memory is non-volatile. DRAM, SRAM, and SDRAM are volatile and lose data without power.

This question belongs to: Computer Memory and Storage Devices

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