GATE CSE 2025 Session 2 Q28: What belongs to a processor's instruction set architecture

Which of the following is/are part of an Instruction Set Architecture of a processor?

Try it: multiple select: one or more correct options

Select all correct options. No negative marking, no partial marks.

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Answer: D (official GATE 2025 final answer key)

Concept used: The ISA is the programmer-visible interface; caches and clock speed are implementation (microarchitecture) details.

First step: Ask which items a machine-language programmer must know to write correct code.

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Source: official GATE 2025 Session 2 CS question paper and final answer key, organised by IIT Roorkee. Question paper · Answer key