Consider the methods used by processes P1 and P2 for accessing their critical sections whenever needed, as given below. The initial values of shared boolean variables S1 and S2 are randomly assigned.


Which of the following statement describes the properties achieved?

The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0=1, S1=0, S2=0. How many times will process P0 print '0'?

Which languages necessarily need heap allocation in the runtime environment?

What does the following program print?

#include < stdio.h >
void f (int *p, int *q) {
     p = q;
    *p = 2;
}
int i = 0, j = 1;
int main ( ){
     f(&i, &j);
     printf ("%d %d \ n", i, j);
     return 0;
}