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

Question
What is the function of a memory decoder?
A. To control the memory bus
B. To select a specific memory location based on an address
C. To manage cache replacement
D. To encode data into memory
Answer: Option B
Solution (By JKSSB Mock Tests)
A memory decoder takes the memory address and activates the appropriate row and column lines to access the correct memory cell.
This question belongs to: Computer Memory and Storage Devices
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Practice More Memory and Storage Devices Questions

Question #1
What does the term 'memory latency' refer to?
A. The time to transfer data from memory to CPU
B. The amount of data transferred per second
C. The delay between issuing a request and getting the data
D. The time to refresh memory
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Correct Answer: Option C

Explanation:
Memory latency is the time delay from when a memory access request is issued to when the data is available. It includes various delays like address decoding, access time, and bus latency.
This question belongs to: Computer Memory and Storage Devices
Question #2
What is the function of an asset known as a 'Solid State Hybrid Drive' (SSHD)?
A. A memory unit that toggles between RAM and ROM modes on demand.
B. A cloud backup server setup using physical tape media archives.
C. A drive combining physical optical disc trays with flash memory chips.
D. A conventional mechanical hard drive featuring a small integrated flash memory cache buffer.
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Correct Answer: Option D

Explanation:
An SSHD combines a traditional high-capacity mechanical hard disk with a small amount of fast solid-state flash memory to cache frequently accessed files, blending capacity and speed.
This question belongs to: Computer Memory and Storage Devices
Question #3
Which of the following is a type of memory that is used for storing data in a navigation system?
A. ROM
B. Flash memory
C. RAM
D. Hard disk
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Correct Answer: Option B

Explanation:
GPS navigation systems use flash memory for storing maps and firmware, with some using SSDs or HDDs.
This question belongs to: Computer Memory and Storage Devices
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