Consider the following 6 concurrent processes where the semaphore is initialized to zero.
A: down(s); cs; up (s);
B: down(s); cs; up (s);
C: down (s); cs; up(s);
D: up(s); cs; down(s);
E: up(s); cs; down(s);
F: up(s); cs;down(s);
What is the maximum value of s?
Enter numerical value using the virtual keypad. Round off where necessary.