Q. 21 Two processes X and Y need to access a critical section. Consider the following
synchronization construct used by both the processes
Here, varP and varQ are shared varibles and both are initialized to false. Which
one of the following statements is true?
(A) The proposed solution prevents deadlock but fails to guarantee mutual
exclusion
(B) The proposed solution guarantees mutual exclusion but fails to prevent
deadlock
(C) The proposed solution guarantees mutual exclusion and prevents deadlock
(D) The proposed solution fails to prevent deadlock and fails to guarantee mutual
exclusion
Answer: (A)
Explanation:
