Question

Consider the following set of processes with the length of the CPU burst. Which scheduling algorithm is best suited for minimizing the average waiting time?

A) Round Robin
B) First-Come, First-Served (FCFS)
C) Shortest Job Next (SJN)
D) Priority Scheduling

Answer 1

Shortest Job Next (SJN) scheduling algorithm is best for minimizing the average waiting time for a set of processes as it schedules the shortest jobs first, reducing the waiting time of shorter processes.

Step-by-step explanation:

The question pertains to process scheduling algorithms in an operating systems context. When seeking to minimize the average waiting time for a set of processes, the best suited scheduling algorithm is Shortest Job Next (SJN). SJN, also known as Shortest Job First (SJF), prioritizes processes based on the length of their next CPU burst.

By scheduling the shortest jobs first, SJN reduces the amount of time that longer processes can delay shorter ones, leading to a lower average waiting time overall. This algorithm is generally more effective at minimizing waiting time compared to the other options, which include Round Robin, First-Come, First-Served, and Priority Scheduling.