Question

In the first come first service (FCFS) scheduling algorithm, which process is executed first?

• A. The process with the shortest burst time
• B. The process that arrives first
• C. The process with the highest priority
• D. The process with the longest burst time

Hint:

FCFS scheduling is based entirely on the chronological arrival sequence: First to Arrive = First to be Processed.

Answer 1

The Correct Option is B

FCFS simply copies the idea of a normal queue at a counter, whoever reaches the queue first gets served first. It does not look at how long a job will take or how important it is, it only checks the order in which requests arrived. So among the given choices, burst time and priority are irrelevant to this rule, and the process picked for execution is always the one that arrived earliest, which is option 2.