Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The "definitive" tool for CCIE,CCNP,CCNA,CCIP

I constantly keep this book at my side Wheteher I am teaching ccna students or doing my own CCNP/CCIP stuff and always when I am working on any cisco product. Jeff Doyle presents complex concepts in a straight forward and understandable manner. I am only sorry I waited so long to purchase this and TCP/IP II.Great illustrations,configs,and examples Good Stuff!!Damian Alcaraz CCNA,CCAICabrillo College Computer Science & Cisco Networking Academy Instructor.