How many bytes are there in one Megabyte (MB) when calculated using binary measurement standard? MCQ with Answer and Explanation

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How many bytes are there in one Megabyte (MB) when calculated using binary measurement standard?

A. 1024 Bytes

B. 1,048,576 Bytes

C. 1000 Bytes

D. 1,000,000 Bytes

Answer: Option B

Solution (By JKSSB Mock Tests)

In binary notation, 1 KB = 1024 Bytes, and 1 MB = 1024 KB. Therefore, 1024 * 1024 = 1,048,576 Bytes.

This question belongs to: Computer Memory and Storage Devices

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Question #1

Which memory unit corresponds exactly to 1024 Terabytes?

A. 1 Gigabyte

B. 1 Exabyte

C. 1 Petabyte

D. 1 Zettabyte

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Correct Answer: Option C

Explanation:
1 Petabyte (PB) is equivalent to 1024 Terabytes (TB) according to binary memory measurements.

This question belongs to: Computer Memory and Storage Devices

Question #2

In the context of memory, what does 'volatile' mean?

A. Memory requires power to retain data

B. Memory is permanent

C. Memory retains data without power

D. Memory cannot be written

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Correct Answer: Option A

Explanation:
Volatile memory loses its stored data when the power supply is turned off. RAM is a classic example of volatile memory.

This question belongs to: Computer Memory and Storage Devices

Question #3

What is the function of a memory controller in a modern CPU?

A. To manage memory timings and data flow

B. To execute instructions

C. To handle I/O operations

D. To manage cache

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Correct Answer: Option A

Explanation:
The memory controller in modern CPUs handles the interface with RAM, including address decoding, command generation, and data transfer, optimizing memory performance.

This question belongs to: Computer Memory and Storage Devices

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