Which statement about high availability for XMPP federation in Cisco IM and Presence is true? 

Answer options:

A. A maximum of two Cisco IM and Presence nodes can be enabled for XMPP federation.
B. Cisco IM and Presence load balances outbound requests across all nodes that are enabled for XMPP federation.
C. Cisco IM and Presence load balances outbound requests across both nodes that are enabled for XMPP federation in a subcluster.
D. The XMPP federation-enabled nodes should have different priorities and weights on the published DNS SRV for proper inbound request node selection.
E. A single DNS SRV record that resolves to an XMPP federation-enabled node must be published on a public DNS server for inbound request routing.

B

High availability for XMPP federation differs from the high availability model for other IM and Presence Service features because it is not tied to the two node sub- cluster model. To provide high availability for XMPP federation, you must enable two or more IM and Presence Service nodes in your cluster for XMPP federation; having multiple nodes enabled for XMPP federation not only adds scale but it also provides redundancy in the event that any node fails.