Cisco QOS 642-642 exam Guide - IP Telephony Self-Study

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

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