Answer:
1. DMZ (Demilitarized zone)
Explanation:
In computer networking, a Demilitarized Zone is a physical or logical network designed to give an extra layer of security on the organization’s private network. The DMZ acts as an interface between an untrusted network such as the internet and the organization’s internal network. When a server is set up in a demilitarized zone, users can reach it via its public IP address. In case there is an attack on the server, the private network is still protected.
Explanation:
To understand how this program is working let us print the variable value at different stages of the program so that we can understand how it is working.
Intitally, value=10 when it was declared.
Then we added 5 and it become value=15
then we used fork() function which creates a parent(orignal) and child(duplicate)
When fork() succeeds it returns the child pid to parent and returns 0 to the child. As you can see (pid > 0) condition is always true therefore the parent pid value becomes 35 ( 15+20) and the child pid value becomes 0.
#include <stdio.h>
#include <unistd.h>
int main( ) {
int value = 10;
printf("%d\n",value);
int pid;
value += 5;
printf("%d\n",value);
pid = fork( );
printf("%d\n",pid);
if (pid > 0 )
{
value += 20;
}
printf("%d\n",value);
return 0;
}
Output:
10 (initial value)
15 (modified value)
5343 (pid when fork is used)
35 (final modified value)
0 (child value)
15 (the parent value when fork was used)
A compiler is often used when you want to test your code; that would often be your second step.
