A Linux administrator is testing a configuration script and wants to change the hostname of a workstation temporarily, but it must return to its assigned workstation name after reboot. Which of the…

The `hostnamectl set-hostname -transient tempname` command correctly sets the system's transient hostname. The `-transient` flag ensures this change is active only until the next reboot, after which the system will revert to its static or configured hostname, fulfilling the requirement for a temporary change.

`hostnamectl -H localhost tempname` is syntactically incorrect and does not specify a temporary hostname change.

`hostnamectl set-hostname tempname` without any flags would set both the static and transient hostnames, making the change persistent across reboots, which is not desired.

`hostnamectl set-hostname -static tempname` explicitly sets the static hostname, making the change permanent and persisting across reboots, which contradicts the requirement for a temporary change.