In this lesson, we will explore the various technologies and devices utilized by Small Office Home Office (SOHO) networks. We focus on the big picture without getting into great detail. The focus of the lesson is to give you an introduction to the different types of networks.

In this lesson, we examine the 2nd layer of the OSI model, called the Data Link Layer. Its main job is to move data between two devices that are directly connected at the physical layer. It adds framing, error detection, and MAC addressing.