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<b>Routing and Switching Essentials v6 Companion Guide</b> <i> <br /> </i> <i>Routing and Switching Essentials v6 Companion Guide</i> is the official supplemental textbook for the Routing and Switching Essentials course in the Cisco Networking Academy CCNA Routing and Switching curriculum. <br /> This course describes the architecture, components, and operations of routers and switches in a small network. <br /> The <i>Companion Guide</i> is designed as a portable desk reference to use anytime, anywhere to reinforce the material from the course and organize your time. <br /> The book's features help you focus on important concepts to succeed in this course: <br /> - <b>Chapter Objectives</b>-Review core concepts by answering the focus questions listed at the beginning of each chapter. - <b>Key Terms</b>-Refer to the lists of networking vocabulary introduced and highlighted in context in each chapter. - <b>Glossary</b>-Consult the comprehensive Glossary with more than 250 terms. - <b>