What is the typical access time for a register? MCQ with Answer and Explanation

Question
What is the typical access time for a register?
A. About 10 nanoseconds
B. About 1 microsecond
C. Less than 1 nanosecond
D. About 100 nanoseconds
Answer: Option C
Solution (By JKSSB Mock Tests)
Registers are extremely fast, with access times typically less than 1 ns, often a fraction of a clock cycle.
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 function of a memory scrubber?
A. To correct errors in memory by reading and rewriting data
B. To erase memory contents
C. To increase memory speed
D. To clean dust from memory modules
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Correct Answer: Option A

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
What is the purpose of a memory map?
A. To store data in a hierarchical manner
B. To assign physical addresses to memory devices
C. To track free memory blocks
D. To allocate cache lines
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Correct Answer: Option B

Explanation:
A memory map defines the layout of physical memory, including the address ranges assigned to different types of memory (RAM, ROM, I/O devices) in a system.
This question belongs to: Computer Memory and Storage Devices
Question #3
Which memory metric describes the time interval between a memory controller issuing a command and the data becoming available on the output pins?
A. Clock Rate
B. Refresh rate
C. CAS Latency
D. Bandwidth
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Correct Answer: Option C

Explanation:
CAS (Column Address Strobe) Latency indicates the delay cycle count between an internal data request command and when the first bit of data is delivered.
This question belongs to: Computer Memory and Storage Devices
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