RHCSA System Exam Questions with Answers
What command would you execute to display all units that failed at the last system boot? - Answer-systemctl --failed
What command would you execute to check the current operational status of the sshd service and its location in the cgroup subtree? - ...
RHCSA System Exam Questions
with Answers
What command would you execute to display all units that failed at the last system
boot? - Answer-systemctl --failed
What command would you execute to check the current operational status of the sshd
service and its location in the cgroup subtree? - Answer-systemctl status sshd
What command would you execute to prevent the crond service from starting at system
boot? - Answer-systemctl disable crond
What command would you execute to see if the rsyslog service is running? - Answer-
systemctl is-active rsyslog
What command would you execute to start the cups service - Answer-systemctl start
cups
What command would you execute to display details for the libvirtd service? - Answer-
systemctl show libvirtd
What command would you execute to transition into the multi-user target, equivalent to
switching to runlevel 3? - Answer-systemctl isolate multi-user.target
What command would you execute to reboot the system? - Answer-systemctl reboot
What command would you execute to power off the system? - Answer-systemctl
poweroff
What command would you execute to display the total amount of time that the last boot
process had taken? - Answer-systemd-analyze
What command would you execute to display the amount of time it had taken to start
each service during the last system boot? - Answer-systemd-analyze blame
What command would you execute to display the cgroup hierarchy of Systemd
processes? - Answer-systemd-cgls
What command would you execute to display resource consumption by cgroup, which is
constantly updated? - Answer-systemd-cgtop
, What command would you execute to set the CPUShares property for the rsyslog
service to 2048?? - Answer-systemctl set-propery rsyslog CPUShares=2048
What command would you execute to list all journal messages that have been
generated since system boot? - Answer-journalctl
What command would you execute to display all journal log messages in verbose
format? - Answer-journalctl -o verbose
What command would you execute to display all journal log messages from the
previous boot? - Answer-journalctl -b -1
What command would you execute to display only kernel-generated journal messages?
- Answer-journalctl -k
What command would you execute to only display the last fifteen journal messages for
the NetworkManager unit? - Answer-journalctl -u NetworkManager -n 15
What command would you execute to only display journal messages for the
/sbin/dnsmasq executable? - Answer-journalctl dnsmasq
What command would you execute to only display journal messages for PID 1773? -
Answer-journalctl _PID=1773
What command would you execute to display all journal error messages that occurred
between 11/15/2015 and 11/15/2015? - Answer-journalctl --since 2015-11-15 --until
2015-11-16 -p err
What command would you execute to display all journal warning messages that have
been generated today? - Answer-journalctl --since=today -p warning
What command would you execute to display that last ten journal messages, and
continuously display them as they're being generated? - Answer-journalctl -f
What commands would you execute to enable persistent journal logging? - Answer-
mkdir -pv /var/log/journal
systemctl restart systemd-journald
What command would you execute to view the default systemd target / runlevel? -
Answer-systemctl get-default
What command would you execute to set the default systemd target to the functional
equivalent of runlevel 3? - Answer-systemctl set-default multi-user
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