Signal Handling Interview Question:

In this program

#include<stdio.h>
#include<signal.h>
#include<stdlib.h>

int main()
{
pid_t child;
child=fork();
switch(child){
case -1 :
perror("fork");
exit(1);
case 0 :
while(1){
printf("Child Processn");
sleep(1);
}
break;
default :
sleep(5);
kill(child,SIGINT);
printf("The child process has been killed by the parent processn");
break;
}
return 0;
}
a) the child process kills the parent process
b) the parent process kills the child process
c) both the processes are killed by each other
d) none of the mentioned

Submitted by: Murtaza

b) the parent process kills the child process
Explanation:
The parnet process kills the child by sending a signal.
Output:
[root@localhost google]# gcc -o san san.c
[root@localhost google]# ./san
Child Process
Child Process
Child Process
Child Process
Child Process
The child process has been killed by the parent process
[root@localhost google]#
Submitted by: Murtaza