XK0-005 Question #131: Real Exam Question with Answer & Explanation

Question

A junior systems administrator created a new filesystem /dev/sda1 with mountpoint /data and added it to the /etc/fstab for auto-mounting. When the systems administrator tries to mount the file system, the system refuses. Given the output below: Which of the following steps is necessary?

Options

• AChange the filesystem from /dev/sda1 to /dev/sda2 and reboot.
• BChange the options to auto,dev,sync,rw,nosuid and run the mount -a command.
• CChange the mount point to data and reboot.
• DChange the dump column to 1 and run the mount -a command.

Explanation

To fix a filesystem refusal to mount after being added to /etc/fstab, the administrator should ensure correct mount options are specified, such as auto,dev,sync,rw,nosuid, and then execute mount -a to apply the changes.

Common mistakes.

• A. Changing the filesystem from /dev/sda1 to /dev/sda2 is an arbitrary device change without justification and would not resolve an fstab option issue.
• C. Changing the mount point to data (a relative path) is incorrect; mount points must be absolute paths (e.g., /data), and the existing /data is already valid.
• D. Changing the dump column (the 5th field in /etc/fstab) to 1 enables dump utility backups, which has no bearing on the ability of the filesystem to mount.

Concept tested. Correcting /etc/fstab entries for mounting

Reference. https://man7.org/linux/man-pages/man5/fstab.5.html

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