Question

What is meant by physical size in a dynamic array?

(a) The size allocated to elements

(b) The size extended to add new elements

(c) The size of the underlying array at the back-end

(d) The size visible to users

The origin of the question is Dynamic Array in division Arrays Types of Data Structures & Algorithms I

The question was asked during an interview.

Answer 1

The correct option is (c) The size of the underlying array at the back-end

Explanation: Physical size, also called array capacity is the size of the underlying array, which is the maximum size without relocation of data.