4.2. Topology Security

Now that you have a good understanding of the transmission media available for carrying your data, let's look at how these media are configured to function as a network. Topology is defined as the rules for physically connecting and communicating on given network media. Each topology has its own set of rules for connecting your network systems and even specifies how these systems must "speak" to one another on the wire. By far the most popular local area network (LAN) topology is Ethernet.

4.2.1. LAN Topologies

The past decade has seen a major change in LAN infrastructure, with Ethernet emerging victorious from its battle with Token Ring as the topology of choice. Beginning with the new century, however, wireless technologies ...

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