Which of the following is not a reasonable constraint for mutual exclusion solut
ID: 3772810 • Letter: W
Question
Which of the following is not a reasonable constraint for mutual exclusion solution?
Only processes competing for a critical section are involved in resolving who enters the critical section
A priority scheme can be used such that a process with higher priority can preempt processes with lower priority
After requesting entry, only a bounded number of other processes may enter the critical section before the requesting process
Once a process attempts to enter its critical section, it cannot be postponed indefinitely
A.Only processes competing for a critical section are involved in resolving who enters the critical section
B.A priority scheme can be used such that a process with higher priority can preempt processes with lower priority
C.After requesting entry, only a bounded number of other processes may enter the critical section before the requesting process
D.Once a process attempts to enter its critical section, it cannot be postponed indefinitely
Explanation / Answer
Answer:
According to mutual exclusion, it will allow only one thread to enter into a critical section. Whatever happens, it does not allow other threads to enter until the present thread comes out of the critical section.
Thus, the answer is option C that is, “After requesting entry, only a bounded number of other processes man enter the critical section before the requesting process”.
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