Which MGCP message does a Cisco IOS MGCP gateway send t…

Which MGCP message does a Cisco IOS MGCP gateway send to the backup Cisco Unified CM
server when two consecutive keep-alive exchanges failed with the primary Cisco Unified CM
server?

A.
AUEP

B.
DLCX

C.
NTFY

D.
RSIP

E.
AUCX