A system administrator is analyzing the process list on a Linux server using the command ps -ef. The output includes several columns of information for each process. Which column in the output represents the Parent Process Identification Number (PPID)?
PID
UID
C
PPID
The correct answer is the column labeled PPID. In the output of the ps -ef command, the PPID column explicitly lists the Parent Process Identification Number for each process. This number is the process ID (PID) of the process that created the current process. The PID column shows the process's own unique ID. The UID column shows the User ID of the process owner. C (or %CPU) represents the percentage of CPU utilization.
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