When A Child Process Exits Before The Parent Process Exits, Which Of The Following Is True A) The Child Process Becomes Defunct B) The Parent Process Becomes Defunct C) If The Parent Process Does Not Handle SIGCHLD, The Child Process Becomes A Zombie D) None Of The Above

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⟩ When a child process exits before the parent process exits, which of the following is true a) the child process becomes defunct b) the parent process becomes defunct c) if the parent process does not handle SIGCHLD, the child process becomes a zombie d) none of the above

b) the parent process becomes defunct

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a) SIGKILL  
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Which signal is sent when the Child process terminates?
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b) SIGKILL
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d) SIGCHLD

Which of the following signal cannot be handled or ignored?
a) SIGINT 
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What happnes as the signal SIGINT hits the current process in the program?

 #include<stdio.h>
 #include<signal.h>
 
 void response (int);
 void response (int sig_no)
 {
  printf("Linuxn");
 }
 int main()
 {
  struct sigaction act;
  act.sa_handler = response;
  act.sa_flags = 0;
  sigemptyset(&act.sa_mask);
  sigaction(SIGINT,&act,0);
  while(1){
  printf("googlen");
  sleep(1);
  }
  return 0;
 }
a) the process terminates
b) the string "Linux" prints
c) the string "Linux" prints and then process terminates
d) none of the mentioned

This program will print

 #include<stdio.h>
 #include<signal.h>
 #include<unistd.h>
 
 void response (int);
 void response (int sig_no)
 {
  printf("%s is workingn",sys_siglist[sig_no]);
 }
 int main()
 {
  alarm(5);
  sleep(50);
  printf("googlen");  
  signal(SIGALRM,response);
  return 0;
 }
a) "google"
b) "Alarm clock"
c) nothing
d) none of the mentioned

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Question and Answer:

Home Linux Operating System Management

⟩ When a child process exits before the parent process exits, which of the following is true a) the child process becomes defunct b) the parent process becomes defunct c) if the parent process does not handle SIGCHLD, the child process becomes a zombie d) none of the above

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Home Linux Operating System Management

⟩ When a child process exits before the parent process exits, which of the following is true a) the child process becomes defunct b) the parent process becomes defunct c) if the parent process does not handle SIGCHLD, the child process becomes a zombie d) none of the above

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