Question

Which buffers exchange the empty buffers for full ones?

(a) single buffer

(b) buffer exchange

(c) directional buffer

(d) double buffer

The question was asked in a job interview.

I'd like to ask this question from Buffer Exchange topic in section Buffering and other Data Structures of Embedded Systems

Answer 1

Correct choice is (b) buffer exchange

The explanation: The buffer exchange can be used for exchanging the empty buffers with the full ones. It will have more than two buffers.