Figure 2-8: Hybrid TCP/IP-osI Architecture layer Recap General Purpose Specitic Purpose Application-application Application(5)Application-application communication interworking Transmission across an Transport(4) Host-host internet communication Internet (3) Packet delivery across an internet Transmission across a Data Link (2) Frame delivery across a single network(LAn or network WAN Physical (1) Device-device TCP/IP standards dominate at the internet and transport layers transmission across an internet 8-38-3 Figure 2-8: Hybrid TCP/IP-OSI Architecture General Purpose Layer Specific Purpose Application-application communication Application (5) Application-application interworking Transmission across an internet Transport (4) Host-host communication Internet (3) Packet delivery across an internet Transmission across a single network (LAN or WAN) Data Link (2) Frame delivery across a network Physical (1) Device-device connection Recap TCP/IP standards dominate at the internet and transport layers— transmission across an internet