Which of the following is true about FCFS disk scheduling?
AIt provides the best throughput compared to other algorithms.
BIt ensures the shortest seek time first.
CIt causes minimal delay for all processes.
DIt serves requests in the order they are received.
Show answerHide answer
Correct answer: (D) It serves requests in the order they are received.
Explanation
FCFS (first come, first served) serves disk requests strictly in arrival order. It is fair and simple, but it does not minimise seek time or give the best throughput.