A system administrator is working on a systemd-based server and needs to switch the system to runlevel 5, which corresponds to the graphical multi-user environment. Which command should the administrator use to change the current target?

systemctl set-default graphical.target

systemctl isolate graphical.target

systemctl start graphical.target

Before performing an emergency shutdown, an administrator needs to send a warning message to all users who are currently logged into the system. The administrator wants to ensure the message is displayed on all terminals. Which command should the administrator use?

echo 'System will shut down in 5 minutes'

logger 'System will shut down in 5 minutes'

wall 'System will shut down in 5 minutes'

write root 'System will shut down in 5 minutes'

LPI LPIC-1:Linux Administrator (101-500)

Domain 1Objective 3

101.3 Change Runlevels / Boot Targets and Shutdown or Reboot System LPIC-1 Practice Questions (Page 2)

Part of the Topic 101: System Architecture domain, which makes up ~10% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–6 in this domain), expect 1–2 from this objective — we provide 39 practice questions to prepare you well beyond it. (estimate)

39questions here

8free pages

15concepts

15 Concepts in This Objective

Understanding runlevels and boot targets
Identifying current runlevel or target
Changing runlevels with init and telinit
Changing boot targets with systemctl
Managing systemd targets and runlevels mapping
Shutting down the system
Rebooting the system
Halting and powering off
Scheduling shutdown and reboot
Canceling a scheduled shutdown
Sending messages to logged-in users
Using wall to notify users
Understanding systemd shutdown targets
Using systemctl for power management
Managing acpid and power buttons

Questions 6–10

6application · medium
A system administrator is working on a systemd-based server and needs to switch the system to runlevel 5, which corresponds to the graphical multi-user environment. Which command should the administrator use to change the current target?
Select an answer first
7foundation · easy
Which systemd target is used to power off the system?
Select an answer first
8application · medium
Before performing an emergency shutdown, an administrator needs to send a warning message to all users who are currently logged into the system. The administrator wants to ensure the message is displayed on all terminals. Which command should the administrator use?
Select an answer first
9foundation · easy
Which command stops the system but may not power off the machine?
Select an answer first
10foundation · easy
Which command sends a message to all logged-in users' terminals?
Select an answer first

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101.3 Change Runlevels / Boot Targets and Shutdown or Reboot System LPIC-1 Practice Questions (Page 2)

Questions 6–10

A system administrator is working on a systemd-based server and needs to switch the system to runlevel 5, which corresponds to the graphical multi-user environment. Which command should the administrator use to change the current target?

Which systemd target is used to power off the system?

Before performing an emergency shutdown, an administrator needs to send a warning message to all users who are currently logged into the system. The administrator wants to ensure the message is displayed on all terminals. Which command should the administrator use?

Which command stops the system but may not power off the machine?

Which command sends a message to all logged-in users' terminals?

Keep studying — Topic 101: System Architecture