You are a newly appointed Technician for company.com Inc. You are working on the Red Hat
operating system. As you are about to leave for some important work, you want to shut down your
system immediately. Which of the following commands can you use to accomplish this?
Each correct answer represents a complete solution. Choose all that apply.

A.
halt -h

B.
/sbin/stop

C.
shutdown -h now

D.
poweroff -h

Explanation:

The shutdown -h now, halt -h, and poweroff -h commands can be used to shut down the Red Hat
operating system immediately.
Answer option B is incorrect. This is an invalid answer and hence cannot be used to shut down the
system.