5**-Layer Network Model**

The TCP/IP Five-Layer Network Model

The Basics of Networking Devices

Cables

Hubs and Switches

Routers

Servers and Clients

Data Physical Layer

Moving Bits Across the Wire

Twisted Pair Cabling and Duplexing

Supplemental Reading for Ethernet Over Twisted Pair Technologies

Supplemental Reading for Twisted Pair Ethernet: Crossover Cables

Network Ports and Patch Panels

Data Link Layer

Ethernet and MAC Addresses

Unicast, Multicast, and Broadcast

Dissecting an Ethernet Frame

Module 1 Glossary

Module 1 Glossary