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Question 16 - CWNA-109 discussion

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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?

A.
Spectrum analysis to locate and identify RF interference sources.
Answers
A.
Spectrum analysis to locate and identify RF interference sources.
B.
Frequency-band hopping analysis to detect improper RF channel implementations.
Answers
B.
Frequency-band hopping analysis to detect improper RF channel implementations.
C.
Application analysis with an active phone call on an VoWiFi handset.
Answers
C.
Application analysis with an active phone call on an VoWiFi handset.
D.
Protocol analysis to discover channel use on neighboring APs.
Answers
D.
Protocol analysis to discover channel use on neighboring APs.
Suggested answer: C

Explanation:

When performing a post-deployment validation survey for voice over Wi-Fi (VoWiFi), an action that must be performed isApplication analysis with an active phone call on a VoWiFi handset. Application analysis is a method of testing the performance of a specific application over the WLAN by measuring parameters such as throughput, latency, jitter, packet loss, MOS score, and R-value. Application analysis with an active phone call on a VoWiFi handset can help to evaluate the quality of service (QoS) and user experience of VoWiFi calls over the WLAN. It can also help to identify any issues or bottlenecks that may affect VoWiFi calls such as interference, roaming delays, or insufficient coverage.Reference:[CWNP Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 549; [CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 519.

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asked 16/09/2024
bhaskar siddanadham
32 questions
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