What is the role of a memory controller in a GPU? MCQ with Answer and Explanation

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What is the role of a memory controller in a GPU?

A. To render 3D images

B. To manage memory access for graphics data

C. To handle display output

D. To process graphics commands

Answer: Option B

Solution (By JKSSB Mock Tests)

In a GPU, the memory controller manages the interface with the video memory (VRAM), handling data transfers for textures, frame buffers, etc.

This question belongs to: Computer Memory and Storage Devices

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Question #1

What is the typical capacity of a microSD card used in smartphones as of 2026?

A. 16-512 GB

B. Up to 1 TB

C. Only 32 GB

D. 2-8 GB

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Correct Answer: Option A

Explanation:
MicroSD cards in 2026 commonly range from 16 GB to 512 GB, with 1 TB cards available but less common. The typical range is 16-512 GB for consumer use.

This question belongs to: Computer Memory and Storage Devices

Question #2

What is the relationship between access speed and storage capacity across the standard computer memory hierarchy?

A. As storage capacity increases, the relative access speed generally decreases.

B. Access speed and capacity are completely identical metrics across all levels.

C. Devices with larger capacities always feature the fastest access speeds.

D. Lower capacity devices always exhibit the slowest access times.

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Correct Answer: Option A

Explanation:
In the memory hierarchy, the fastest options (registers, cache) are small and expensive, while large capacity options (HDDs, SSDs) are farther from the CPU and have slower access speeds.

This question belongs to: Computer Memory and Storage Devices

Question #3

What is the purpose of error-correcting code (ECC) memory?

A. To detect and correct data corruption

B. To increase memory speed

C. To increase memory capacity

D. To reduce power consumption

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Correct Answer: Option A

Explanation:
ECC memory includes extra parity bits to detect and correct single-bit errors, improving data integrity, especially in servers.

This question belongs to: Computer Memory and Storage Devices

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