Maintain Filesystem Integrity (2)

Question 1

Which of the following commands are used to tune filesystems?

1. mke2fs
2. tune2fs
3. xfs_admin
4. xfs_repair
5. xfs_fsr
6. btrfstune

Answer 1

1. mke2fs
2. tune2fs
3. xfs_admin
4. xfs_fsr
5. btrfstune

The tune2fs, xfs_admin, xfs_fsr, and btrfstune utilities all tune a filesystem after it has been formatted. The mke2fs utility can format a filesystem and tune it at the same time.

Question 2

You need to change a partition’s UUID, and the filesystem is an XFS filesystem. What utility should you use to accomplish this task?

1. xfs_repair
2. xfs_db
3. xfs_repair
4. xfs_repair -n
5. xfs_admin
6. xfs_fsr

Answer 2

5. xfs_admin

The xfs_admin utility will allow you to change an XFS filesystem’s UUID through the use of the -U option.

Question 3

Which of the following are filesystem mount points that should be on their own filesystem?

1. /usr
2. /etc
3. /opt
4. /var
5. /tmp
6. /usr/local

Answer 3

1. /usr, 3. /opt, 4. /var, 5. /tmp AND 6. /usr/local

The /var, /tmp, /usr, /home, /opt, /boot, and /usr/local filesystem mount points should be on their own filesystem.

Question 4

Which of the following are filesystem mount points that should not be on their own filesystem?

1. /usr
2. /etc
3. /opt
4. /bin
5. /sbin
6. /usr/local

Answer 4

2. /etc, 4. /bin AND 5. /sbin

The /etc, /sbin, /dev, /bin, and /lib filesystem mount points should NOT be on their own filesystem.

Question 5

Which of the following is true concerning systemd mount unit files?

1. systemd reads /etc/fstab at boot to creates mount unit files
2. systemd mounts filesystems at system boot time
3. View systemd mounted filesystems via systemctl show-units
4. Customized mount unit files are in /etc/systemd/system/
5. Mount unit files have the .mnt file extension

Answer 5

1. systemd reads /etc/fstab at boot to creates mount unit files
2. systemd mounts filesystems at system boot time
3. Customized mount unit files are in /etc/systemd/system/

systemd reads /etc/fstab at boot to creates mount unit files on-the-fly, and mounts the filesystems. To view systemd mounted filesystems use the systemctl -t mount list-units command. Customized mount unit files are in /etc/systemd/system/ and mount unit files have the .mount file extension.

Question 6

You need to check and repair an XFS filesystem. What utility should you use to accomplish this task?

1. xfs_chk
2. xfs_db
3. xfs_repair
4. xfs_repair -n
5. xfs_admin
6. xfs_fsr

Answer 6

3. xfs_repair

The xfs_repair utility will allow you to check and repair an XFS filesystem. The xfs_repair -n command only performs checks.