The x86 ISA is: MCQ with Answer and Explanation

The x86 ISA is:

A. Fixed 32-bit

B. RISC based

C. Backward compatible across generations

D. Completely new each time

Answer: Option C

Maintains compatibility.

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

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Question #1 Report Error

Which is a characteristic of ARM processors?

A. CISC architecture

B. Energy efficiency for mobile devices

C. High power consumption desktops

D. Limited to servers

Correct Answer: Option B

Explanation:
They dominate mobile and embedded markets.

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

Question #2 Report Error

Return stack buffer helps predict:

A. Function returns accurately

B. Cache hits

C. Data loads

D. ALU results

Correct Answer: Option A

Explanation:
For CALL/RET pairs.

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

Question #3 Report Error

Stack Pointer is a type of:

A. Accumulator

B. Status register

C. Address register

D. Data register

Correct Answer: Option C

Explanation:
It points to the top of the stack in memory for function calls.

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