RHEL Linux - Red Hat System Administration Practice Exam

The correct approach to check the current runlevel in RHEL is to use the command that retrieves system runlevel information. The command "runlevel" displays the current runlevel and the previous one, making it straightforward to identify the state of the system. Alternatively, "systemctl get-default" reflects the default target that corresponds to the runlevel concept in the newer systemd initialization method. This is significant because Red Hat Enterprise Linux has transitioned from the traditional SysVinit runlevels to systemd targets, which can be thought of as an advanced runlevel system.

While the other commands listed have their purposes, they do not serve to check the current runlevel directly. "chkconfig" is primarily used for managing services and their runlevels but does not show the current state. "systemctl status" provides the status of a service or unit but does not indicate the overall runlevel of the system. "getty" is related to terminal sessions and doesn't provide information on system runlevels. Thus, the first choice effectively combines traditional and modern methods to achieve the desired information, making it the correct answer.