With Redhat linux enterprise 6 system the df and du commands allow you to see the mnt capacity, as shown below.
redhat: ~ # df -h / mnt
Filesystem Size Used Avail Use% Mounted on
/ dev / sdb 1008M 514M 443M 54% / mnt
redhat: ~ # du -hs / mnt
40k / mnt
What causes the capacity shown to not be the same?
A . The mnt directory mounted block device is abnormal
B . The mnt directory is also mounted another block device and some files that are currently open.
C . The mnt directory have been deleted
D . This is a bug of the known du and df commands that need to be upgraded to the latest version
Answer: C