Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Read the book, and other books too.

Don't just pick up a 400 page book, understand the book and expect to pass the test! The book goes over each exam objective to VARYING levels of detail. If you see an exam objective, and the book did not provide you with what you considered to be adequate detail, then study those subjects with other materials. If you have questions on a subject or did not thoroughly understand it, do yourself a favor, and study. Study the IOS manuals, dig into the Cisco web site, understand their case studies. Understand the workings of the various WAN technologies, and heck, even go read an RFC or 2. This book is the exam objectives PDF file on steroids, not a 2 week read-and-certify. I would suggest going over the book, then finding supplimental materials going over LAN/WAN technologies and IOS configuration. The book does not give you all of the information you will need. Real life experience and studying other materials will, along with the book as a good starting point.