Explanation:They allow their users to connect with the other services’ public users for a fee. 4. Which of the following protocol is not a Internet Engineering Task Force standard ?
A. SIP
B. SIMPLE
C. XMPP
D. IMPS
Answer:A
Explanation:They allow their users to connect with the other services’ public users for a fee. 4. Which of the following protocol is not a Internet Engineering Task Force standard ?
A. SIP B. SIMPLE C. XMPP D. IMPS
Explanation:IMPS is IM communications standard.