Câu 7: CWNA-108: Certified Wireless Network Administrator

You were previously onsite at XYZ's facility to conduct a pre-deployment RF site survey. The WLAN has been deployed according to your recommendations and you are onsite again to perform a post-deployment validation survey. When performing this type of post-deployment RF site survey voice over Wi-Fi, what is an action that must be performed?

1. A. Spectrum analysis to locate and identify RF interference sources.
2. B. Frequency-band hopping analysis to detect improper RF channel implementations.
3. C. Application analysis with an active phone call on an VoWiFi handset. — đáp án hiện tại
4. D. Protocol analysis to discover channel use on neighboring APs.