A network engineer wants to implement QoS across the network that supports multiple VLANs.

 Differentiated Services Code Point (DSCP) is the trust model that must be configured on the switch ports to which the APs are connected in local mode. This is because DSCP provides a way to classify and manage network traffic and to provide QoS. DSCP can be trusted on the switch port, and the AP can then mark the packets with the appropriate DSCP value, which will be retained across the network. References := (CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide)