3.3.6

If a systemd system is configured to use multi-user.target as the default boot target, which file has a symbolic link, or symlink, to the multi-user.target file?

/etc/systemd/system/default.target

You are experiencing a problem with a network server. You want to bring the system down and try reseating the cards within it before restarting it. Which command runs poweroff.target to shut down the system in an orderly manner?

systemctl isolate poweroff.target

You need to perform some system maintenance on a systemd system, and want to prevent users from logging on while you do so. Which command should you run?

systemctl isolate rescue.target

You have a systemd Linux system that is configured to boot into the graphical.target by default. The system seems to be running much slower than normal. You need to reboot the system, but you want it to boot into a single-user target unit with no network access so you can perform troubleshooting tasks and get the system running normally again. What should you do before you reboot?

Set the default boot target to rescue.target

You are working on a Linux distribution that uses systemd. Which non-symlink file in the /usr/lib/systemd /system/ directory is used to start the services necessary for multiple users, networking, and for a graphical display?

graphical.target

You are experiencing a problem with one particular server. Each time it boots, it goes into single user mode even though no warnings or errors are reported. You want to verify that it is configured to boot to the multi-user.target unit, just as all your other servers are. This system is running systemd. Which command would you use to see which boot target is set as the default?

systemctl get-default

You are on a systemd system and you want to change from the currently running target unit, without rebooting the system, to a target that supports networking, multiple users, and displays a graphical interface. What command should you enter?

systemctl isolate graphical.target

The current default boot target is multi-user.target, but you want to use this system as a desktop workstation. You need a boot target that supports multiple users, networking, and has a graphical display. This is a systemd system. What command should you enter to change the default boot target to one that meets these needs?

systemctl set-default graphical.target

Which daemon is responsible for bringing up other units and services when boot targets are changed?

systemd