Which of the following is a disadvantage of user level threads?
A. User-level thread does not require modification to operating systems.
B. Thread switching is not expensive than a procedure call.
C. User-level threads can be implemented on a OS that does not support threads.
D. User level threads require non blocking system calls
Answer:D
Which of the following is a disadvantage of user level threads?
A. User-level thread does not require modification to operating systems. B. Thread switching is not expensive than a procedure call. C. User-level threads can be implemented on a OS that does not support threads. D. User level threads require non blocking system calls