http://www.allinterview.com Top Unix IPC Interview Questions en-us http://www.allinterview.com/showanswers/13942.html fork() sytem call create child process to handle multi processing activities, It inherites following fields from parent. environment variables, Filedescriptor, data part I will think and write ... http://www.allinterview.com/showanswers/13948.html 1.running 2.stop 3. zombie http://www.allinterview.com/showanswers/14270.html The system calles for process management are fork() which will create a process wait() will wait for exit status of all child processes. http://www.allinterview.com/showanswers/13953.html Inter Process Communication. IPC is used to pass information between two or more processes. Schemes are pipes, shared memory & semaphore. http://www.allinterview.com/showanswers/13946.html Parent and child processes can communicate with unnamed pipe, but the pipe should be created before creating the child(i.e. forking). After forking the process, child process inherits all properties of parent, hence pipe also. This pipe can ce us http://www.allinterview.com/showanswers/107844.html iwant to who command botting time excuted plese tell me. thenk you. http://www.allinterview.com/showanswers/13947.html A system that has been taken over using Remote Control Software. Zombies are often used to send spam or to attack remote servers with an overwhelming amount of traffic (a Distributed Denial of Service Attack). http://www.allinterview.com/showanswers/13949.html Daemon stands for Disk and Execution Monitor. A daemon is a long-running background process that answers requests for services. http://www.allinterview.com/showanswers/105279.html Semaphore is one method used for interprocess communication. http://www.allinterview.com/showanswers/13943.html The output is Hello World!Hello World! http://www.allinterview.com/showanswers/14269.html PID (Process Id) and PPID(Parent Process Id) http://www.allinterview.com/showanswers/14268.html Whenever the system boots up, daemons are initialised. The first process that gets initialised is scheduler (PID 0). This in turn initialises init process (PID 1) vhand,bdflush are the other processes that get initialised when the system boots http://www.allinterview.com/showanswers/13951.html If a process is running in background then the same process will continue to run on the Unix server without any communication with the front console. the console can be reused. http://www.allinterview.com/showanswers/13950.html When command is given then unix os will fork the shell i.e will creat a new process and will execute the command using exec command...something like suppose you gave command "ls" in the shell then... fork(); exec(ls); It will give you http://www.allinterview.com/showanswers/13952.html with the help of "exec" version. look for man pages for more help