What is the function of the 'system clock' in relation to memory? MCQ with Answer and Explanation

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What is the function of the 'system clock' in relation to memory?

A. It controls the timing of data transfer between CPU and memory

B. It allocates memory to processes

C. It determines the memory capacity

D. It measures the amount of memory used

Answer: Option A

Solution (By JKSSB Mock Tests)

The system clock provides a timing signal that synchronizes the operations of the CPU, memory, and other components, coordinating data transfers.

This question belongs to: Computer Memory and Storage Devices

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Question #1

Which of the following is a characteristic of a memory's latency?

A. It is the amount of data transferred per second

B. It is the number of clock cycles per second

C. It is the delay between a request and response

D. It is the physical size of the memory

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Correct Answer: Option C

Explanation:
Latency is the time delay from initiating a request to receiving a response, a key performance metric for memory.

This question belongs to: Computer Memory and Storage Devices

Question #2

What is the typical data transfer rate of a USB 3.0 flash drive?

A. 10 Gbps

B. 1 Gbps

C. 480 Mbps

D. 5 Gbps (theoretical)

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Correct Answer: Option D

Explanation:
USB 3.0 has a theoretical maximum data rate of 5 Gbps. Actual throughput is lower, but it's significantly faster than USB 2.0 (480 Mbps).

This question belongs to: Computer Memory and Storage Devices

Question #3

What is the typical speed of a CD-ROM drive at 52x?

A. 52 KB/s

B. 52 MB/s

C. 1.3 MB/s

D. 7.8 MB/s

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Correct Answer: Option D

Explanation:
1x CD speed is 150 KB/s. 52x is 52 * 150 = 7800 KB/s = 7.8 MB/s. So option B is correct.

This question belongs to: Computer Memory and Storage Devices

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