To make an Avaya Aura® Communication Manager (CM) Survivable Server work successfully, which two interfaces must be configured? (Choose two.)

To make an Avaya Aura® Communication Manager (CM) Survivable Server work successfully, which two interfaces must be configured? (Choose two.)
A . the IP address of the FTP Backup Server that holds the latest Backup copy of the CM Main Server
B . the IP Address of the Media Gateways and Avaya Aura® media Servers that will register with it during failover mode
C . the Processor Ethernet or C-Lan board (in legacy installations) for RAS Keep-alive registration with the Main CM Server
D . the IP address of all Endpoints that will register with it upon an outrage
E . the individual IP address of the two CM Main Servers in a Cluster (or the only Main CM Server if Simplex) for ACP Translations-file Synchronization.

Answer: C,E