Go back to 642-591 - CANAC - Implementing Cisco NAC Appliance

Question :-

If an administrator configures interfaces E0, E1 and S0 to support NAM high-availability failover, what information is exchanged over these interfaces?
NAM run-time data activities, UDP heartbeat signals, redundant heartbeat signals
NAM run-time data activities, UDP heartbeat signals and backup and recover database snapshots
NAM run-time data activities and UDP heartbeat signals
NAM run-time data activities and IP Based heartbeat signals

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