For courses in Cisco Certification, Cisco Technology and Networking. Internetworking Technologies Handbook, Third Edition is a comprehensive guide detailing available internetworking alternatives. It provides the student with the most current technologies for wide area networks (WANs) and teaches how to effectively implement these technologies on a network. After working with this book, the student will possess a greater understanding of local and wide area networking and the hardware, protocols, and services involved. Preparing the student to be able to make more intelligent, cost-effective and quantifiable networking decisions for their environment. This book is part of the Cisco-recommended training for CCNA certification preparation.