Explore networking fundamentals, including TCP and UDP and review common networking hardware devices. In this course you will recognize the differences between hubs and bridges. Learn when to use a network switch. See how a router protects your systems. Find the differences between access points, repeaters, and extenders. Learn when to use network controllers. Differentiate between cable and DSL modems. Describe the purpose of patch panels. List the benefits of Power over Ethernet (PoE), and compare it with Ethernet over Power, which uses common electrical wiring to convey Ethernet connectivity. Conclude by finding out how cloud-based network controllers work.