Which of the following is a secure protocol that can be used to protect IM and presence information?
A. Password Authentication Protocol (PAP)
B. NT LAN Manager (NTLM)
C. Extensible Message and Presence Protocol (XMPP)
D. Challenge Authentication Protocol (CHAP)
C
Explanation: Extensible Messaging and Presence Protocol (XMPP) over TLS is an example of a secure messaging protocol.
Computer Science & Information Technology
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