Question

Which of the following allows the multiple tasks to process data simultaneously?

(a) single buffer

(b) double buffer

(c) buffer exchange

(d) directional buffer

This question was posed to me during a job interview.

This question is from Buffer Exchange in portion Buffering and other Data Structures of Embedded Systems

Answer 1

Right answer is (c) buffer exchange

For explanation: The buffer exchange allows the multiple tasks to process simultaneously without having to have control structures to supervise access and it is also used to simplify the control code.