Official self-study test preparation guide for the Cisco QOS 642-642 exam. The official study guide helps you master all the topics on the QOS exam, including * QoS concepts, tools, and architectures * Modular QoS CLI (MQC), QoS Policy Manager (QPM), and AutoQoS * Classification and marking * Congestion management * Traffic shaping and policing * Congestion avoidance through drop policies * Compression tools and link fragmentation and interleaving (LFI) tools for link efficiency * LAN QoS * QoS best practices The CCVP certification validates a robust set of skills in implementing, operating, configuring, and troubleshooting a converged IP network. A solid understanding of quality-of-service (QoS) features and implementation is essential for CCVP certification and is also a core component of the CCIP(R) certification. Cisco QOS Exam Certification Guide, Second Edition, is a best-of-breed Cisco(R) exam study guide that focuses specifically on the objectives for the QOS 642-642 exam. Senior instructor and best-selling author Wendell Odom and senior AVVID consultant Michael Cavanaugh share preparation hints and test-taking tips, helping you identify areas of weakness and improve your QoS knowledge. Material is presented in a concise manner, focusing on increasing your understanding and retention of exam topics. Cisco QOS Exam Certification Guide, Second Edition, presents you with an organized test preparation routine through the use of proven series elements and techniques. "Do I Know This Already?" quizzes open each chapter and allow you to decide how much time you need to spend on each section. Exam topic lists and Foundation Summary tables, figures, and snapshot information make referencing easy and give you a quick refresher whenever you need it. Challenging chapter-ending review questions help you assess your knowledge and reinforce key concepts. The companion CD-ROM contains a powerful testing engine that allows you to focus on individual topic areas or take complete, timed exams. The assessment engine also tracks your performance and provides feedback on a module-by-module basis, presenting question-by-question remediation to the text. Well-regarded for its level of detail, assessment features, and challenging review questions and exercises, this book helps you master the concepts and techniques that will enable you to succeed on the exam the first time. Cisco QOS Exam Certification Guide, Second Edition, is part of a recommended learning path from Cisco Systems(R) that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining. Companion CD-ROM The companion CD-ROM contains a test bank with more than 300 practice questions, flash card format questions, and an electronic version of the text. CD-ROM test engine powered by www.boson.com. Boson Software is a Cisco Learning Partner. 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 nears.