Question

Which mode uses 16 higher real-time class priority levels?

(a) real mode

(b) user mode

(c) kernel mode

(d) protected mode

I have been asked this question by my college professor while I was bunking the class.

This question is from Resource Protection-II in section Real Time Operating systems of Embedded Systems

Answer 1

Correct answer is (c) kernel mode

Easiest explanation: The kernel mode processes use the 16 higher real-time class priority levels and the operating system processes will take the preference over the user applications.