What is the purpose of a memory delay line? MCQ with Answer and Explanation

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What is the purpose of a memory delay line?

A. To increase memory speed

B. To store data permanently

C. To introduce a known delay to synchronize signals

D. To reduce power consumption

Answer: Option C

Solution (By JKSSB Mock Tests)

Memory delay lines are used to delay signals, often in older technologies, to synchronize data paths.

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. 50 GB

B. 25 GB

C. 8.5 GB

D. 4.7 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

Which of the following is a type of memory that is used to store the operating system?

A. RAM

B. ROM

C. Cache

D. Hard disk

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Correct Answer: Option A

Explanation:
The operating system is loaded from secondary storage (hard disk) into RAM (primary storage) for execution. During execution, it resides in RAM.

This question belongs to: Computer Memory and Storage Devices

Question #3

What is the typical storage capacity of a CD-R?

A. 700 MB

B. 650 MB

C. 25 GB

D. 4.7 GB

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Correct Answer: Option A

Explanation:
A standard CD-R can hold 700 MB of data (or 80 minutes of audio), though some older ones may be 650 MB. DVD-R holds 4.7 GB, and Blu-ray 25 GB.

This question belongs to: Computer Memory and Storage Devices

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