XK0-005 Question #414: Real Exam Question with Answer & Explanation

Question

A systems administrator is investigating an issue in which one of the servers is not booting up properly. The journalctl entries show the following: Which of the following will allow the administrator to boot the Linux system to normal mode quickly?

Options

• AComment out the /opt/app filesystem in /etc/fstab and reboot.
• BReformat the /opt/app filesystem and reboot.
• CPerform filesystem checks on local filesystems and reboot.
• DTrigger a filesystem relabel and reboot.

Explanation

The fastest way to boot the Linux system to normal mode is to comment out the /opt/app filesystem in /etc/fstab and reboot. This will prevent the system from trying to mount the /opt/app filesystem at boot time, which causes an error because the filesystem does not exist or is corrupted. Commenting out a line in /etc/fstab can be done by adding a # symbol at the beginning of the line. Rebooting the system will apply the changes and allow the system to boot normally. Reformatting the /opt/app filesystem will not help to boot the system, as it will erase any data on the filesystem and require manual intervention to create a new filesystem. Performing filesystem checks on local filesystems will not help to boot the system, as it will not fix the missing or corrupted /opt/app filesystem. Triggering a filesystem relabel will not help to boot the system, as it will only change the security context of files and directories according to SELinux policy.

No community discussion yet for this question.