The following ZFS file system is available on your system:
NAMEUSED AVAIL REFER MOUNTPOINT
files 82K 72.8G 24.5K /data
You want to temporarily unmount the /data file system. Which set of commands will unmount the
/data file system so that it is not available to users and then mount the system when you are ready
to make it available again?
A.
umount /data – to unmount the file system; mount /data to mount the file system
B.
zfs unmount /data – to unmount the file system; zfs mount /data to mount the file system
C.
zfs umount /data – to unmount the file system; zfs mount /data to mount the file system
D.
zfs unmount /data – to unmount the file system; zfs mount -a to mount the file system
Explanation: