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RHCSA – Systemd: Questions And Correct Answers

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RHCSA – Systemd: Questions And Correct Answers

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  • October 24, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • RHCSA
  • RHCSA
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LeCrae
RHCSA – Systemd: Questions And Correct Answers

What command would you execute to view the default systemd target /
runlevel? Right Ans - systemctl get-default

What command would you execute to set the default systemd target to the
functional equivalent of runlevel 3? Right Ans - systemctl set-default multi-
user

What command would you execute to set the default systemd target to the
functional equivalent of runlevel 5? Right Ans - systemctl set-default
graphical.target

When using the "systemctl" utility, what is the default systemd type if
omitted? Right Ans - service

What would you append to the end of the default Linux kernel entry in order
to boot to the "emergency" Systemd target, and what key combination would
you press to proceed with booting? Right Ans -
systemd.unit=emergency.target

What would you append to the end of the default Linux kernel entry in order
to boot to the "Rescue" Systemd target, which is equivalent to runlevel 1
(single user mode)? Right Ans - systemd.unit=rescue.target

What command would you execute to see whether or not the sshd service is
enabled? Right Ans - systemctl is-enabled sshd

What command would you execute to disable the Apache service? Right
Ans - systemctl disable httpd

What command would you execute to display all services present on the
system and whether or not they are enabled? Right Ans - systemctl list-
unit-files --type=service

What command would you execute to display the hostname and other
pertinent information via systemd? Right Ans - hostnamectl

, What command would you execute to set the hostname to
i.can.has.cheezburger via systemd? Right Ans - hostnamectl set-hostname
i.can.has.cheezburger

What file is the system's hostname stored in? Right Ans - /etc/hostname

What command would you execute to activate any manual updates made
directly to /etc/hostname? Right Ans - systemctl restart systemd-
hostnamed

Where are Systemd system unit files located, and what command could you
execute to derive this information? Right Ans - /usr/lib/systemd/system
pkg-config systemd --variable systemdsystemunitdir

Where are Systemd user unit files located, and what command could you
execute to derive this information? Right Ans - /etc/systemd/user
pkg-config systemd --variable systemduserconfdir

Where are Systemd units located that are effectively created at boot and
destroyed when no longer needed? Right Ans - /run/systemd/system

What are the twelve unit types included in Systemd and their respective
descriptions? Right Ans - service - Manages service daemons and their
respective processes

socket - Manages IPC or network socket or a file system FIFO controlled and
supervised by systemd, for socket-based activation

device - Manages kernel device units as exposed in the sysfs/udev(7) device
tree

mount - Manages file system mount points

automount - Manages file system automount points

swap - Manages swap devices or files for memory paging

target - Manages target units of systemd, which are used for grouping units
and as well-known synchronization points during start-up

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