Ccna routing and Switching Complete Study Guide

Chapter 21: Wide Area Networks    This is the longest, and last, chapter in the book. It 

covers multiple protocols in depth, especially HDLC, PPP, and Frame Relay, along with a 

discussion on many other technologies. Good troubleshooting examples are provided in the 

PPP and Frame Relay configuration sections, and these cannot be skipped! Hands-on labs 

meant to focus squarely on the objectives are included at the end of the chapter, as well as a 

written lab and challenging review questions.

Chapter 22: Evolution of Intelligent Networks    I saved the hardest chapter for last. What 

makes this chapter challenging is that there is no configuration section to you really need to 

dive deep into the cloud, APIC-EM and QoS sections with an open and ready mind. I stuck 

as close to the objectives as possible in order to help you ace the exam. The written lab and 

review questions are spot on for the objectives.