Cisco IOS Down & Dirty Quick Reference Companion is a FAST ACCESS to Cisco commands and examples. In addition; each command has a direct link to Cisco’s website for more information and examples. This digital reference guide is a MUST HAVE for any network administrator or engineer that I keep on my laptop, digital reader, or smartphone when you need it. (especially when you cannot get to the internet) With a complete list of commands, description, and link directly to Cisco’s webpage, this is more than just a cheat sheet but a valued resource during emergencies and even a great study guide for your CCNA or any other type of Cisco Certification.