CWNP CWDP-305 Exam - Topic 2 Question 28 Discussion

Question

ABC Company has a WLAN controller with 10 controller-based APs; the Voice SSID is configured for centralized data forwarding. Each AP is

connected to an access port on a layer-2 Ethernet switch. Each layer-2 switch is uplinked to a single layer-3 core Ethernet switch. The WLAN

controller is connected directly to the layer-3 core Ethernet switch. Layer-3 tunnels are created between all controller-based APs and the WLAN

controller. A voice server is connected to the layer-3

Ethernet switch.

When a voice-enabled QoS STA sends an IP data packet to a voice server in this scenario, the DSCP value carried in the STA's IP data packet gets

mapped to what and by which device?

Paola · Accepted Answer

A) The DSCP value is mapped to an IEEE 802.1Q priority tag value by the WLAN controller.

Paola · Answer

B) The DSCP value is mapped to the DSCP value in the encapsulating IP header by the layer-3 switch.

Paola · Answer

C) The DSCP value is mapped to an IEEE 802.1p (802.1D-2004) UP value by the access point.

Paola · Answer

D) The DSCP value is mapped to an IEEE 802.1Q VLAN tag by the access point.