Question

Which of the following is FALSE?

(a) Context switch time is longer for kernel level threads than for user level threads

(b) User level threads do not need any hardware support

(c) Related kernel level threads can be scheduled on different processors in a multiprocessor system

(d) Blocking one kernel level thread blocks all other related threads

The question was posed to me by my school teacher while I was bunking the class.

Origin of the question is User and Kernel Threads in section The Linux System of Operating System

Answer 1

Right option is (d) Blocking one kernel level thread blocks all other related threads

Easiest explanation - None.