Packet Tracer Activities–Explore and visualize networking concepts using Packet Tracer exercises interspersed throughout the chapters.

Videos–Watch the videos embedded within the online course.

Interactive Activities–Reinforce your understanding of topics by doing all the exercises from the online course identified throughout the book with this icon.

How To–Look for this icon to study the steps you need to learn to perform certain tasks.

Check Your Understanding–Evaluate your readiness with the end-of-chapter questions that match the style of questions you see in the online course quizzes.

Summary of Activities and Labs–Maximize your study time with this complete list of all associated practice exercises at the end of each chapter.

Glossary–Consult the comprehensive Glossary with more than 150 terms.

Key terms–Refer to the lists of networking vocabulary introduced and highlighted in context in each chapter.

Chapter objectives–Review core concepts by answering the focus questions listed at the beginning of each chapter.The book’s features help you focus on important concepts to succeed in this course: 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. 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. You learn how to configure a router for basic and advanced functionality. This course describes the architecture, components, and operations of routers, and explains the principles of routing and routing protocols. Routing Protocols Companion Guide is the official supplemental textbook for the Routing Protocols course in the Cisco® Networking Academy® CCNA® Routing and Switching curriculum.

9.3.2.1 packet tracer