What are two possible reasons why a scheduled nightly backup of ISE to a FTP repository would fail?
(Choose two.)

A.
ISE attempted to write the backup to an invalid path on the FTP server.

B.
The ISE and FTP server clocks are out of sync.

C.
The username and password for the FTP server are invalid.

D.
The server key is invalid or misconfigured.

E.
TCP port 69 is disabled on the FTP server.