Which statement describes what happens when a failed primary Cisco Unified Communications
Manager comes back into service?
A.
Devices in that group automatically reregister with the primary Cisco Unified CM.
B.
The group automatically re-elects a new primary Cisco Unified CM when it is out of service, and
it rejoins the group as a member Cisco Unified CM.
C.
The primary Cisco Unified CM must be added manually back to the group.
D.
A new temporary region is created automatically to avoid conflicts until database
resynchronization finishes.
Explanation: