Peer to Peer (P2P) A network where all PC's can act as client or server for other PC's on a network.
Node- Both the client and the server share resources.
User-Client The server is what the client 'goes to' for packets.
Service Provider- Server/Host
Service Requester- Client
Domain- A collection of Security principles that share a central directory data-base. The central data-base is typically maintained by a proprietary service provider. (Microsoft)
Enterprise/Private Network-Usually for business in order to interconnect to various company sites.
Federation-Multiple network providers agreeing upon standards of operation. (for example Yahoo-Messenger+ MSN Messenger