Implementing Cisco Enterprise Wireless Networks (ENWLSI) — Question 25

An engineer wants the wireless voice traffic class of service to be used to determine the queue order for packets received, and then have the differentiated services code point set to match when it is resent to another port on the switch. Which configuration is required in the network?

Answer options

• A. Platinum QoS configured on the WLAN
• B. WMM set to required on the WLAN
• C. msl qos trust dscp configured on the controller switch port
• D. msl qos trust cos configured on the controller switch port

Correct answer: D

Explanation

The correct answer is D because configuring 'msl qos trust cos' allows the switch port to recognize and prioritize packets based on the class of service. Options A and B relate to WLAN configurations but do not directly address the switch port requirements. Option C incorrectly focuses on trusting DSCP instead of CoS, which is necessary for the specified task.