Introducing Routing and Switching in the Enterprise, CCNA Discovery Learning Guide is the official supplemental textbook for the Introducing Routing and Switching in the Enterprise course in the Cisco(R) Networking Academy(R) CCNA(R) Discovery curriculum version 4. The course, the third of four in the new curriculum, familiarizes you with the equipment applications and protocols installed in enterprise networks, with a focus on switched networks, IP Telephony requirements, and security. It also introduces advanced routing protocols such as Enhanced Interior Gateway Routing Protocol (EIGRP) and Open Shortest Path First (OSPF) Protocol. Hands-on exercises include configuration, installation, and troubleshooting. The Learning Guide, written and edited by instructors, is designed as a portable desk reference to use anytime, anywhere to reinforce the material from the course and organize your time. The Learning Guide's features help you focus on important concepts to succeed in this course: Chapter Objectives-Review core concepts by answering the focus questions listed at the beginning of each chapter. * Key Terms-Refer to the lists of networking vocabulary introduced and highlighted in context in each chapter. The Glossary defines each key term. * Summary of Activities and Labs-Maximize your study time with this complete list of all associated exercises at the end of each chapter. * Check Your Understanding-Evaluate your readiness with the end-of-chapter questions that match the style of questions