Implementing Cisco Enterprise Wireless Networks (ENWLSI) — Question 261

A municipality customer uses a Cisco 5520 Series Wireless Controller for the wireless network. The customer intends to move the depot of its stores from using legacy bespoke voice-over-Wi-Fi handsets to a VoIP software package running on 5 GHz-capable laptops, tablets, and smartphones. Bluetooth headsets will be used for any voice communication on any data device. Assuming that a suitable RF site survey for 5 GHz has already been carried out, which two configuration settings ensure the best possible voice experience? (Choose two.)

Answer options

• A. Configure AVC on the controller to prioritize voice over other applications' traffic on the same device.
• B. Remark all traffic coming from the new voice-capable devices with DSCP 46 (EF) at the AP.
• C. Assign the Platinum QoS profile to the SSID carrying the new-style voice traffic.
• D. Create mobility groups and include all the APs in the high-density areas.
• E. Turn off the 2.4 GHz radios on all APs where the voice application is used.

Correct answer: A, C

Explanation

Configuring AVC on the controller to prioritize voice traffic ensures that voice communication is given higher precedence over other types of data, which is crucial for maintaining quality. Assigning the Platinum QoS profile to the SSID used for voice traffic guarantees that it receives the highest quality of service, thus enhancing the overall voice experience. The other options, while potentially beneficial, do not directly address the immediate need for prioritizing voice traffic in a VoIP environment.