Rise in percentage of disk time indicates
-
I/O bottleneck
-
Memory bottleneck
-
Disk bottleneck
-
Network bottleneck
C
Correct answer
Explanation
Disk time percentage measures how long the disk is busy servicing requests. A sustained increase indicates the disk cannot keep up with I/O demand, causing requests to queue. This is a clear indicator of a disk bottleneck where storage performance limits overall system throughput.