Book excerpt: The only authorized Labs & Study Guide for the Cisco Networking Academy Introduction to Networks v7.0 (ITN) course in the CCNA Routing and Switching curriculum. This book provides an introduction to IT and Networking and is suitable for learners with an interest in IT. Each chapter of this book is divided into a Study Guide section followed by a Lab section. The Study Guide sections offer exercises that help you learn the concepts, configurations, and troubleshooting skills crucial to your success as a CCNA exam candidate. Each chapter is slightly different and includes some or all of the following types of exercises: Vocabulary Matching Exercises Concept Questions Exercises Skill-Building Activities and Scenarios Configuration Scenarios Packet Tracer Exercises Troubleshooting Scenarios The Labs & Activities sections include all the labs and Packet Tracer activities from the online curriculum. If applicable, this section begins with a Command Reference, an exercise where the reader matches commands.