Refer to the exhibit.
A collaboration engineer restored a failed primary node of an active/standby IM and presence subcluster. The engineer notices that users fallback to the node occurred .
Which action resolves this issue?
A . Reboot the primary node
B . Wait for the primary node to establish 30 minutes of uptime
C . Modify the Client Re-Login Limits
D . Set the Keep-Alive (Heartbeat) interval to 15.
Answer: B