CCNA 200-301 Official Cert Guide, Volume 1, 2nd Edition

Appendix K

Topics from Previous Editions

We base the books’ contents on the Cisco exam topics; that is, the books attempt to cover the topics Cisco lists as exam topics. However, the book authoring process does create some challenges, particularly with the balance of what to include in the books and what to leave out.

For instance, when I compared a new exam to the old, Cisco had removed some topics—and I might want to keep the content in the book. There are a few reasons why. Sometimes I just expect that some readers will still want to read about that technology. Also, more than a few schools use these books as textbooks, and including some of the older-but-still-relevant topics can be a help. And keeping the old material available on each ...