RHCSA RHCSA Filesystem and Mount Configuration 3

Question 1

Which command creates a new XFS filesystem on /dev/sdc1?

Accepted Answer

mkfs.xfs /dev/sdc1

Answer

mkfs.xfs is the standard command to create an XFS filesystem on a specified block device.

Question 2

A disk partition /dev/sdb2 is formatted as XFS and mounted at /backup. Which command repairs it if corrupted?

Accepted Answer

xfs_repair /dev/sdb2

Answer

xfs_repair is the correct tool to repair a corrupted XFS filesystem; fsck.xfs exists but only calls xfs_repair.

Question 3

Which /etc/fstab option makes a filesystem mount only when explicitly requested with 'mount -a' or accessed?

Accepted Answer

noauto

Answer

The 'noauto' option prevents the filesystem from being mounted automatically during boot or when 'mount -a' is run.

Question 4

What does 'mount --bind /source /destination' accomplish?

Accepted Answer

Makes the same directory tree accessible at a second location

Answer

A bind mount makes the same directory tree visible at two different mount points without copying data.

Question 5

Which command extends an XFS filesystem on /dev/vg1/lv1 that is mounted at /data to use all available space?

Accepted Answer

xfs_growfs /data

Answer

xfs_growfs extends an XFS filesystem online using the mount point; the underlying LV must already be extended first.

RHCSA Exam Practice Test