If a process needs I/O to or from a disk, and if the drive or controller is busy then
A)the request will be placed in the queue of pending requests for that drive
B)the request will not be processed and will be ignored completely
C)the request will be not be placed
D)none of the mentioned

Question

Quizplus · Accepted Answer

When a process needs I/O to or from a disk and the drive or controller is busy, the request is placed in a queue of pending requests for that drive. This allows the system to manage and eventually process all requests in an orderly manner once the drive or controller becomes available.

If a Process Needs I/O to or from a Disk