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

What is the function of a memory queue?
A. To manage cache hits
B. To hold pending memory requests
C. To allocate memory
D. To store data permanently
Answer: Option B
Solution (By JKSSB Mock Tests)
A memory queue buffers pending memory requests, allowing the memory controller to schedule them efficiently.

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Practice More Memory and Storage Devices Questions

Question #1
Which type of memory is used as main system memory in most computers?
A. DRAM
B. Flash
C. ROM
D. SRAM

Correct Answer: Option A


Explanation:
DRAM (Dynamic RAM) is commonly used as the main memory (system RAM) in computers due to its higher density and lower cost compared to SRAM, although it requires periodic refreshing.

This question belongs to: Computer Memory and Storage Devices
Question #2
What is the term used to describe the organization of matching tracks across all physical platter surfaces in a multi-platter hard disk drive?
A. Cluster
B. Sector Array
C. Block Group
D. Cylinder

Correct Answer: Option D


Explanation:
A cylinder consists of the exact same track number intercepted vertically across all available platter surfaces in a hard disk drive assembly.

This question belongs to: Computer Memory and Storage Devices
Question #3
What is the typical power consumption of an M.2 NVMe SSD?
A. About 50 watts
B. Less than 1 watt
C. About 5-10 watts
D. About 20 watts

Correct Answer: Option B


Explanation:
M.2 NVMe SSDs typically consume between 2-5 watts during active use, with idle power around 0.1-0.5 watts. Under heavy load, they may use up to 6-8 watts, but less than 1 watt is for low-power states. For general exam, they are known for low power.

This question belongs to: Computer Memory and Storage Devices