What is the role of a memory controller hub (MCH)? MCQ with Answer and Explanation

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What is the role of a memory controller hub (MCH)?

A. To control the hard disk

B. To manage power delivery

C. To connect the CPU to I/O devices

D. To connect the CPU to graphics and memory

Answer: Option D

Solution (By JKSSB Mock Tests)

The Memory Controller Hub (Northbridge) traditionally connects the CPU to memory and high-speed graphics. In modern CPUs, the memory controller is integrated.

This question belongs to: Computer Memory and Storage Devices

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Question #1

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

A. To handle display output

B. To manage memory access for graphics data

C. To render 3D images

D. To process graphics commands

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Correct Answer: Option B

Explanation:
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

Question #2

Which of the following is a characteristic of a magnetic disk?

A. Data is stored magnetically on a circular platter

B. Data is stored in pits

C. Data is stored in flash cells

D. Data is stored using laser

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Correct Answer: Option A

Explanation:
Hard disk drives store data magnetically on rotating platters. Optical discs use pits, and SSDs use flash cells.

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Question #3

In computer data organization, what does a single 'Word' represent?

A. A text element containing no numerical integers.

B. The standard space needed to save a string character.

C. A fixed group of 8 bits.

D. The natural unit of data used by a particular CPU design (e.g., 32-bit or 64-bit).

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Correct Answer: Option D

Explanation:
A computer word is the standard size of data that a processor can handle and execute in a single operation, typically 32 or 64 bits modernly.

This question belongs to: Computer Memory and Storage Devices

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