Exam 300-430 topic 1 question 23 discussion

In a FlexConnect deployment where access points (APs) are configured with centrally-switched SSIDs, the Trust DSCP QoS configuration must be implemented to maintain consistent QoS markings across the wired and wireless network. Here’s why: Trust DSCP: DSCP (Differentiated Services Code Point) is a Layer 3 QoS marking that provides end-to-end traffic prioritization. By configuring the Wireless LAN Controller (WLC) and APs to trust DSCP, the QoS markings in the IP headers of packets are preserved as traffic traverses both the wired and wireless network. This ensures consistent QoS treatment for applications like voice (VoWiFi) and data. Centrally-Switched SSIDs: In centrally-switched mode, traffic from the APs is tunneled back to the WLC. Trusting DSCP ensures that the QoS markings are maintained as traffic passes through the WLC and into the wired network.

D is correct

D. Trust DSCP. Question is not asking what markings will be applied but what will allow whatever marking there is to exist and be maintained throughout it's journey over both the wired and wireless infrastructure.

If WLAN QoS is default (Silver), the class of service will be rewritten to Best Effort on the controller.

WMM is WiFi Multimedia Qos, the question was which feature provides for wireless and WIRED. Provided answer is correct and verified.

Provided answer is correct

Answer should be C - Allow WMM.