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Consider the following two-process synchronization solution 

Process 0  

-------- Entry: loop while (turn == 1); (critical section) 

Exit: turn = 1;

Process 1

------- Entry: loop while (turn == 0); (critical section) 

Exit: turn = 0;

The shared variable turn is initialized to zero. Which one of the following is TRUE?

(A) This is a correct two-process synchronization solution.

(B) This solution violates mutual exclusion requirement. 

(C) This solution violates progress requirement. 

(D) This solution violates bounded wait requirement.

1 Answer

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Best answer

Correct option is 7

S = -20 + 12 = -8

∴ The largest initial value of S for which at list one P (S) operation remains blocked remains blocked is 7.

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