Which protocol should be used to accomplish this task?

Posted by: Pdfprep Category: 300-810 Tags: , ,

An engineer is configuring a remote Cisco IM and Presence Service and needs to ensure that users can communicate across clusters in the same domain and receive presence status.

Which protocol should be used to accomplish this task?
A . XMPP
B . DNS
C . LDAP
D . AXL/SOAP

Answer: A

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