- 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.
- Glossary – Consult the comprehensive Glossary with more than 250 terms.
- Summary of Activities and Labs – Maximize your study time with this complete list of all associated practice 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 you see in the online course quizzes. The answer key explains each answer.
- How To – Look for this icon to study the steps you need to learn to perform certain tasks.
- Interactive Activities – Reinforce your understanding of topics with dozens of exercises from the online course identified throughout the book with this icon.
- Videos – Watch the videos embedded within the online course.
- Packet Tracer Activities – Explore and visualize networking concepts using Packet Tracer. There are 40 exercises interspersed throughout the chapters and provided in the accompanying Labs & Study Guide book.

Introduction to Networks Companion Guide (CCNAv7)
by Cisco Networking Academy-
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