Part II. Quality of Service

This part covers the following ONT exam topics. (To view the ONT exam overview, visit http://www.cisco.com/web/learning/le3/current_exams/642-845.html.)

  • Explain the necessity of QoS in converged networks (e.g., bandwidth, delay, loss, etc.).

  • Describe strategies for QoS implementations (e.g. QoS Policy, QoS Models, etc.).

  • Describe classification and marking (e.g., CoS, ToS, IP Precedence, DSCP, etc.).

  • Describe and configure NBAR for classification.

  • Explain congestion management and avoidance mechanisms (e.g., FIFO, PQ, WRR, WRED, etc.).

  • Describe traffic policing and traffic shaping (i.e., traffic conditioners).

  • Describe Control Plane Policing.

  • Describe WAN link efficiency mechanisms (e.g., Payload/Header Compression, MLP with ...

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