Chapter 7: Layer 2 -Technologies Labs:

7.6.2 | In this lab, you will use the help menu, and the process of experimentation, to learn the basics of navigating within the Network Inspector (or equivalent) environment.
7.6.3 | In this lab, you will learn about the problems/symptoms that the NI program can detect.
7.6.4 | In this lab, you will work on a series of troubleshooting exercises that focus on problems, changes, and errors.