The write-back cache policy: MCQ with Answer and Explanation

The write-back cache policy:

A. Never writes

B. Reads only

C. Writes data to memory immediately

D. Delays write to memory until needed

Answer: Option D

It improves performance by reducing memory writes.

This question belongs to: Computer CPU (Central Processing Unit)

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Question #1 Report Error

Cache memory is placed between:

A. RAM and Hard Disk

B. Input and Output devices

C. CPU and RAM

D. ALU and CU

Correct Answer: Option C

Explanation:
Cache provides faster access to frequently used data between CPU and main memory.

This question belongs to: Computer CPU (Central Processing Unit)

Question #2 Report Error

Which of the following is an example of a control register?

A. General purpose register

B. Data register

C. Accumulator

D. Flag register

Correct Answer: Option D

Explanation:
Flag or status registers hold information about the state of the CPU after operations.

This question belongs to: Computer CPU (Central Processing Unit)

Question #3 Report Error

The microcode ROM is part of:

A. Registers

B. Control Unit in CISC processors

C. ALU

D. Cache

Correct Answer: Option B

Explanation:
It translates complex instructions.

This question belongs to: Computer CPU (Central Processing Unit)