Acknowledgments

As a technical author, I rely heavily on my technical editor; Rick McDonald had my back for this work. Thankfully, when Mary Beth Ray contacted him, he was willing and able to do the arduous review work necessary to make sure that you get a book that is both technically accurate and unambiguous.

Wendell Odom’s Cisco CCNA Routing and Switching 200-125 Official Cert Guide and Network Simulator Library was one of my main sources. These two books and the accompanying simulator activities have the breadth and depth needed to master the CCNA exam topics.

The Cisco Network Academy authors for the online curriculum and series of Companion Guides take the reader deeper, past the CCNA exam topics, with the ultimate goal of preparing the ...

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