Systems Management XK0-006 Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   An admin needs to find all log entries related to SSH authentication failures in the journal. Which command accomplishes this?

   • Ajournalctl --since today | grep sshd
   • Bjournalctl -u sshd | grep 'Failed password'
   • Cgrep 'Failed password' /var/log/auth.log
   • Djournalctl -p err | grep sshd
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   Which command displays the last 50 lines of the system log file /var/log/syslog?

   • Ahead -n 50 /var/log/syslog
   • Bcat /var/log/syslog | tail -50
   • Cless -n 50 /var/log/syslog
   • Dtail -n 50 /var/log/syslog
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   Which command displays the current status of the cron service, including whether it is active or inactive?

   • Asystemctl list-units --type=service
   • Bsystemctl status cron
   • Cservice cron list
   • Dsystemctl show cron
   Reveal Solution Discussion Select an answer first
5. 4expert · medium

   A service is in a 'failed' state. The admin wants to know if the failure is due to a recent change in a configuration file. Which approach is most effective?

   • ARun systemctl restart service and see if it starts
   • BCheck systemctl list-dependencies service
   • CReview /var/log/messages for the service name
   • DCheck the journal for the service around the time of the change
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   In a systemd unit file, which directive specifies that the service must be started after the network is available?

   • AAfter=network.target
   • BRequires=network.target
   • CBefore=network.target
   • DWants=network.target
   Reveal Solution Discussion Select an answer first