What is the advantage of making storage checkpoints automatically accessible through a directory named .checkpoint in the root of the file system?

The concatenated mirrored volume called appvol in appdg has 200MB and is mounted to /app as a Veritas file system. An administrator needs to expand the file system and volume by adding 100MB, but expanded only the volume using the following command.

# vxassist -g appdg growby appvol 100M

Which command should the administrator perform next to expand the file system, without changing the volume size?

Refer to the exhibit.

The appvol volume contains a file system and is mounted to /app. The volume has experienced multiple disk failures.

What is the state of the data on the mounted file system?