RHCSA Part 2 Test Questions with Correct Answers
Command to switch to a different runtime target on a running system - Answer-systemctl isolate TARGET
(i.e. systemctl isolate t)
Command to set default target to the graphical target - Answer-systemctl set-default t
Content to add to the li...
Command to switch to a different runtime target on a running system - Answer-
systemctl isolate TARGET
(i.e. systemctl isolate multi-user.target)
Command to set default target to the graphical target - Answer-systemctl set-default
graphical.target
Content to add to the linux line during a system boot to change the target to the rescue
target - Answer-systemd.unit=rescue.target
Content to add to the linux line during a system boot to get a root shell
(used when resetting the root password) - Answer-rd.break
4 commands to use when resetting the root password during a system boot - Answer-
mount -o remount,rw /sysroot
chroot /sysroot
passwd root
touch /.autorelabel
(then type exit twice)
File to edit to change journalctl config - Answer-/etc/systemd/journald.conf
(**must run systemctl restart systemd-journald.service after changing this file)
Line to change in /etc/systemd/journald.conf to make system journals persistent across
reboots - Answer-Storage=persistent
(**must run systemctl restart systemd-journald.service after changing this file)
Command to inspect errors in logs from a previous boot - Answer-journalctl -b -1 -p err
(with a negative number after the -b option, it will display the logs of previous boots)
Command to set default firewall zone - Answer-firewall-cmd --set-default-zone=ZONE
, Command to permanently open the network ports for mysql on the internal zone -
Answer-firewall-cmd --permanent --zone=internal --add-service=mysql
Command to get an overview of all of the current port label assignments - Answer-
semanage port -l
(the -l lists the ports in the order port_label_t, tcp|udp, comma separated list of ports)
Command to add an existing port label gopher_port_t of type tcp on the port 71 -
Answer-semanage port -a -t gopher_port_t -p tcp 71
Command to validate a kickstart file - Answer-ksvalidator FILENAME
Command to install packages needed to make a system a virtualization host - Answer-
yum module install virt
Command to validate system requirements for KVM - Answer-virt-host-validate
Command to install necessary package to run and manage containers on a system -
Answer-yum module install container-tools
Command to pull a container image onto your system - Answer-podman pull
CONTAINER_IMAGE
(after pulling an image, the image is stored locally)
Command to list locally stored container images - Answer-podman images
Command to run a container from a container image - Answer-podman run -it
CONTAINER_IMAGE
Location of container registry information - Answer-/etc/containers/registries.conf
Command that displays configuration information for podman - Answer-podman info
Command to search for container registries for a specific container - Answer-podman
search REGISTRY/IMAGE_NAME
(i.e. podman search registry.redhat.io/rhel8)
Command to inspect container images from remote registries OR local directories -
Answer-skopeo inspect IMAGE
Command to inspect locally stored images - Answer-podman inspect IMAGE
Command to remove locally stored images - Answer-podman rmi IMAGE
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