Which protocol does the Avaya IP Office platform use to communicate between servers in a...

In Avaya IP Office Server Edition, multiple servers (Primary, Secondary, and Expansion systems) communicate with each other to form a unified system. The protocol used for this inter-server communication is the Small Community Network (SCN) protocol, making Option C correct. SCN is a proprietary Avaya protocol that enables features like distributed hunt groups, call routing, and resilience across servers. Option A (H.323) and Option B (SIP) are VoIP protocols used for call signaling with endpoints or trunks, not inter-server communication in Server Edition. Option D (SNMP) is a network management protocol, not used for server-to-server coordination.References: Avaya IP Office Server Edition Reference Configuration Guide, SCN Configuration Guide.