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Question 259

A customer requires QoS to support multimedia conferencing over MPLS. The network architect chooses to use per-hop behavior. Which solution must the architect use to classify and mark traffic traveling between branch sites?

    Correct Answer: C

    To support multimedia conferencing over MPLS with QoS, the network architect must use a solution that involves per-hop behavior, which requires classifying and marking the traffic. To achieve this, a Class-Based Weighted Fair Queueing (CBWFQ) approach supplemented with Weighted Random Early Detection (WRED) for providing differentiation and ensuring efficient queuing is effective. DSCP AF3 is appropriate for this scenario as it is typically used for multimedia traffic. Therefore, the correct option is BW Queue and DSCP WRED with DSCP AF3.

Discussion
08511d4Option: B

Surely WRED is best practice