Designing Cisco Enterprise Networks (ENSLD) — Question 229

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?

Answer options

Correct answer: B

Explanation

The correct answer is B because using BW Queue and DSCP WRED with DSCP AF4 provides the necessary classification and marking for multimedia traffic, ensuring it receives the appropriate treatment in the network. Options A and D lack the WRED mechanism, which is essential for managing congestion, while option C uses DSCP AF3 instead of AF4, which may not meet the required QoS levels for multimedia conferencing.