Instruction in networking essential concepts including the OSI reference model, network protocols, transmission media, and networking hardware and software. Identify media used in network communications, distinguish among them, and determine how to use them to connect servers and clients in a network; recognize the primary network architectures, identify their major characteristics, and determine which would be most appropriate for a proposed network; determine how to implement and support the major networking components, including the server, operating system, and clients; distinguish between Local Area Networks (LANs) and Wide Area Networks (WANs) and identify the components used to expand a LAN into a WAN; and determine how to implement connectivity devices in the larger LAN/WAN environment.