Instruct: Classify a review into positive or negative sentiment.
Query: Stay away from this book

I bought this book to prepare for the CIT 4.0 exa, and I wonder if the authors even bothered to look at the exam objectives. The book is excellent if you want to learn the various debug commands in the cisco ios, but if you plan on passing the CIT 4.0 exam, you would need to get most of the material from somewhere else