Home » Oracle » 1z0-821 » Why does the process continue to run?
User1 is attempting to assist user2 with terminating user2’s process 1234.
User1 entered the following: kill -9 1234
Why does the process continue to run?
A. You can kill a process only if you are root.
B. You can kill only a process that you own.
C. You can kill the process only with the pkill command.
D. You need to kill the process with a stronger kill signal.
Correct Answer: B
Explanation/Reference:
Explanation:
Kill -9
Kill (terminates without cleanup)
Only works if issued by process owner or super user (root)
The program cannot respond to this signal; it must terminate
Note: Unix provides security mechanisms to prevent unauthorized users from killing other processes. Essentially, for a process to send a signal to another, the owner of the signaling process must be the same as the owner of the receiving process or be the superuser.
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