Refer to the exhibit.
Which protocol is used for communication between Cisco IM and Presence and Microsoft Exchange Server?
A . POP3
B . IMAP
C . EWS
D . XMPP
Answer: C
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab11/collab11/presence.html