Question

_________ register keeps track of the instructions stored in program stored in memory.

(a) AR (Address Register)

(b) XR (Index Register)

(c) PC (Program Counter)

(d) AC (Accumulator)

The question was asked at a job interview.

Origin of the question is Symbol Table Organization topic in section Symbol Table of Compiler

Answer 1

Correct answer is (c) PC (Program Counter)

Easiest explanation: Program Counter keeps track of the next instruction.