Question

Which of the following uses a single low water tank and a next data pointer?

(a) single buffer

(b) double buffer

(c) directional buffer

(d) linear buffer

The question was posed to me in final exam.

I'd like to ask this question from Types of Buffers in section Buffering and other Data Structures of Embedded Systems

Answer 1

The correct answer is (a) single buffer

The best explanation: The single buffer uses a single low water tank and a next data pointer. The next data pointer is used for accessing the next entry that should be extracted.