Official self-study test preparation guide for the Cisco QOS 642-642 exam

• 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 Cisco IP Telephony focused certification tracks validate proficiency in designing, installing, and supporting a multiservice network solution. A solid understanding of quality-of-service (QoS) features and implementation is essential for all of the Cisco IP Telephony focused certifications and is also a core component of the CCIP certification. Cisco QOS Exam Certification Guide, Second Edition, is a best-of-breed Cisco 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.

• Introduction
• QoS Overview
• QoS Tools and Architectures
• MQC, QPM, and AutoQoS
• Classification and Marking
• Congestion Management
• Traffic Policing and Shaping
• Congestion Avoidance Through Drop Policies
• Link Efficiency Tools
• LAN QoS
• Cisco QoS Best Practices