4. How many processes are created in the following program 

5. Explain the following
   1. Difference between short-term and long-term scheduling
   2. Ordinarily the exec() system call follows the fork(). Explain what would happen if a programmer were to inadvertently place the call to exec() before the call to fork().
   3. Difference between parallelism and concurrency
   4. Difference between process and thread
   5. Thread pool and its use
       

int main() { } int i; for(i=0;i