What is the typical storage capacity of a CD-R? MCQ with Answer and Explanation

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

A. 700 MB

B. 25 GB

C. 4.7 GB

D. 650 MB

Answer: Option A

Solution (By JKSSB Mock Tests)

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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Question #1

What is the function of a memory scrubber?

A. To increase memory speed

B. To clean dust from memory modules

C. To erase memory contents

D. To correct errors in memory by reading and rewriting data

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Correct Answer: Option D

Explanation:
A memory scrubber is a background process that reads memory locations and corrects errors (using ECC) to prevent accumulation of errors.

This question belongs to: Computer Memory and Storage Devices

Question #2

Which of the following is a common file system used on flash drives?

A. FAT32

B. All of the above

C. NTFS

D. exFAT

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Correct Answer: Option B

Explanation:
Flash drives can be formatted with various file systems including FAT32, exFAT, and NTFS, depending on compatibility and file size requirements.

This question belongs to: Computer Memory and Storage Devices

Question #3

What is the function of a page file (swap file) in virtual memory?

A. To provide a backup of the operating system

B. To manage cache memory

C. To speed up file access

D. To store data that is not currently in physical RAM on disk

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Correct Answer: Option D

Explanation:
The page file is a portion of the hard disk used as additional RAM (swap space) for virtual memory, allowing the system to move inactive pages out of physical RAM.

This question belongs to: Computer Memory and Storage Devices

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