Question

What is reference?

(a) It is an expression that evaluates to an address where a value is stored

(b) It is a variable with the same address as another variable

(c) All of the mentioned

(d) None of the mentioned

I had been asked this question in an online interview.

Origin of the question is Visibility, Accessibility and Information Hiding in section Visibility, Accessibility and Information Hiding of Software Architecture

Answer 1

Correct answer is (a) It is an expression that evaluates to an address where a value is stored

The best I can explain: A reference is an expression that evaluates to an address where a value is stored and An alias is a variable with the same address as another variable.