What is the function of a memory rank? MCQ with Answer and Explanation

Question
What is the function of a memory rank?
A. A measure of memory speed
B. A set of DRAM chips on a module that can be accessed simultaneously
C. A type of memory error
D. A part of the memory address
Answer: Option B
Solution (By JKSSB Mock Tests)
A memory rank is a group of DRAM chips on a DIMM that are accessed together to provide a data bus width (e.g., 64-bit).
This question belongs to: Computer Memory and Storage Devices
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Practice More Memory and Storage Devices Questions

Question #1
What is the primary function of the 'Write Protect' switch on an SD card or old floppy disk?
A. To encrypt stored files
B. To allow remote file sharing
C. To prevent accidental deletion or modification of data
D. To accelerate data access speed
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Correct Answer: Option C

Explanation:
The write-protect option physically or digitally locks the media to prevent any modification, deletion, or addition of new file content.
This question belongs to: Computer Memory and Storage Devices
Question #2
What is the function of a memory queue?
A. To hold pending memory requests
B. To manage cache hits
C. To allocate memory
D. To store data permanently
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Correct Answer: Option A

Explanation:
A memory queue buffers pending memory requests, allowing the memory controller to schedule them efficiently.
This question belongs to: Computer Memory and Storage Devices
Question #3
Which of the following is a type of optical disc that can store up to 25 GB on a single layer?
A. Blu-ray
B. CD
C. DVD
D. HD DVD
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Correct Answer: Option A

Explanation:
A single-layer Blu-ray disc can store approximately 25 GB of data. DVD holds 4.7 GB, and CD holds about 700 MB.
This question belongs to: Computer Memory and Storage Devices
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