Test the official self-study guide for test preparation Cisco CCNA 640-821 INTRO Best-selling study guide helps you master all the topics on the new CCNA INTRO exam, including: TCP / IP and OSI network modelsOperating Cisco routers and LAN switching switchesLAN basis, VLAN, and TrunkingIP addressing and router configuration and operationDiscovering subnettingBasic information about IP routing protocolsAnalog networkDynamic modems, PAP / CHAP, DSL and Cable CCNA INTRO Exam Certification Guide is a-best-breed Cisco (r) exam study guide that has been completely updated to focus specifically on the objectives for the new CCNA INTRO exam. Accompanying CD-ROM contains a powerful testing engine that allows you to focus on individual topic areas or take complete, timed exams from INTRO or unified CCNA test banks. CD-ROM also includes many hands-on practical exercises and a copy of the Boson NetSim (tm) for CCNA INTRO, Learning Edition, network simulation software that allows you to practice hands-on skills in a virtual lab environment that is suited for labs in this book. Well-regarded for the level of detail, assessment features, and challenging review questions and hands-on exercises, this book helps you master the concepts and techniques that will enable you to succeed on the exam the first time. CCNA INTRO Exam Certification Guide is part of a recommended study program from Cisco Systems (r) that includes simulation and hands-on training from the base of Cisco Learning Partners and self-study products from Cisco Press.1624, is a senior instructor with Skyline Computer, where he teaches courses on QoS, CCNA, and CCIE lab preparation. He has worked in networking arena for 20 years, with jobs in pre-and post-sales technical consulting, teaching, and program development. Companion CD-ROM CD-ROM contains more than 300 practice questions for INTRO ICND, and CCNA exams, including simulation-based questions. Also contains hands-on training and customized copies of the software NetSim LE network simulation. This volume is part of the Exam Certification Guide Series from Cisco Press (r). Books in this series provide officially developed exam preparation materials that offer assessment, review, and practice to help Cisco Career Certification candidates identify weaknesses, concentrate their study efforts, and enhance their confidence as exam day approaches.