Accessing the WAN, CCNA Exploration Companion Guide is the official supplemental textbook for this CCNA Exploration course from the Cisco Networking Academy. Completely revised to match the new curriculum with new examples and explanations, this textbook includes original material developed by the authors, yet it fully aligns with the CCNA Exploration curriculum. Written by experienced instructors who present material using their own voices and some of their own examples, this new edition augments student understanding of course material. The new edition incorporates recently improved features to aid instructors and enhance student comprehension. Chapters align with course modules in both name and number, and chapter objectives are stated as questions to encourage students to think about and find answers as they read chapters. End-of-chapter Check Your Understanding questions and Summaries align with chapter objectives to emphasize key topics, while key terms are listed in each chapter opener in the order of occurrence to alert students to upcoming vocabulary words. In addition, key features include How To quick references for step-by-step tasks real-world examples and all-new illustrations concise explanations with a focus on word usage and sentence structure for improved readability and Packet Tracer activities throughout. For Sale in Indian subcontinent only