Multiprocess or multiuser systems run in supervisor mode for all the following situations except_________.
A) when powering up
B) when running application software
C) when running the operating system code
D) when servicing and interrupt or exception

Question

Quizplus · Accepted Answer

In multiprocessor or multiuser systems, the CPU operates in supervisor mode (also known as kernel mode) for tasks that require unrestricted access to hardware resources, such as during system boot (powering up), executing operating system code, and handling interrupts or exceptions. Running application software, however, typically occurs in user mode to prevent applications from directly accessing hardware or other critical system resources, ensuring system stability and security.

Multiprocess or Multiuser Systems Run in Supervisor Mode for All