You work as a Network Administrator for Tech Perfect Inc. The company has a Linux-based network. You want to kill a process running on a Linux server. Which of the following commands will you use to…

killall terminates processes by name rather than by PID, so it does not display PID information.

The ps (process status) command lists active processes and their associated process identification numbers (PIDs). Without knowing the PID, an administrator cannot target a specific process with the kill command. Common usage includes 'ps aux' or 'ps -ef' to display all running processes and their PIDs.

getpid() is a C library system call used within programs to retrieve the calling process's own PID, not a standalone shell command.

kill sends a signal to terminate a process but requires the PID as an argument, meaning you must already know the PID before using it.