Routing Protocols Companion Guide is the official supplemental textbook for the Routing Protocols course in the Cisco(R) Networking Academy(R) CCNA(R) Routing and Switching curriculum. This course describes the architecture, components, and operations of routers, and explains the principles of routing and routing protocols. You learn how to configure a router for basic and advanced functionality. By the end of this course, you will be able to configure and troubleshoot routers and resolve common issues with RIPv1, RIPv2, EIGRP, and OSPF in both IPv4 and IPv6 networks. The Companion Guide is designed as a portable desk reference to use anytime, anywhere to reinforce the material from the course and organize your time. The book's features help you focus on important concepts to succeed in this course: Chapter objectivesReview core concepts by answering the focus questions listed at the beginning of each chapter. Key termsRefer to the lists of networking vocabulary introduced and highlighted in context in each chapter. GlossaryConsult the comprehensive Glossary with more than 150 terms. Summary of Activities and LabsMaximize your study time with this complete list of all associated practice exercises at the end of each chapter. Check Your UnderstandingEvaluate your readiness with the end-of-chapter questions that match the style of questions you see in the online course quizzes. The answer key explains each answer. How ToLook for this icon to study the steps you need to learn to perform certain tasks. Interactive ActivitiesReinforce your understanding of topics by doing all the exercises from the online course identified throughout the book with this icon. VideosWatch the videos embedded within the online course. Packet Tracer ActivitiesExplore and visualize networking concepts using Packet Tracer exercises interspersed throughout the chapters. Hands-on LabsWork through all the course labs and Class Activities that are included in the course and published in the separate Lab Manual.