Self-study test preparation guide for DQOS official 9E0-601 and Cisco QOS 642-641 exam This official study guide helps you master all the topics on the exam DQOS, including: QoS concepts, tools, and architecturesClassification and the concept of tagging and toolsQueuing on Cisco routers and configuration toolsTraffic police and formed queues in Cisco routersConfiguration toolsConfiguration avoid the congestion of link-efficiency tools Call admission control (CAC) tools for voice and video QoS toolsQoS connectionsCisco management processesQoS design in LAN switches Cisco IP Telephony Support, Design, and Operations Specialist focused certifications validate proficiency in designing, installing, and supporting multiservice network solution. A solid understanding of quality-service-(QoS) features and implementation is very important for all of Cisco IP Telephony focused certifications and is also a core component of the certification (tm) CCIP. DQOS Cisco Certification Exam Guide is-best-breed Cisco (r) exam study guide that focuses on goals for the exam DQOS. DQOS Cisco Certification Exam Guide presents you with a routine exam preparation is provided through the use of proven series elements and techniques. Accompanying CD-ROM contains a powerful testing engine that allows you to focus on individual topic areas or take complete, timed exams that help you prepare for the components of a good QoS IP Telephony or CCIP certifications. DQOS Cisco Certification Exam 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.Books in this series provide officially developed exam preparation materials that assessment offers, reviews, and practice to help Cisco Career Certification candidates identify weaknesses, concentrate their study efforts, and enhance their confidence as exam day approaches.