Question 2083 – Nielit Scientific Assistance CS 15-10-2017

Disk requests come to a disk driver for cylinders in the order 10, 22, 20, 2, 40, 6 and 38 at a given time when the given disk drive is reading from cylinder 20. The seek time is 6ms per cylinder.What is the total seek time, if the disk arm scheduling algorithm FCFS is used?

Correct Answer: D

Total seek time= 10+12+2+18+38+34+32
= 146*6 ms
= 876 ms