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Free CWNA-109 Exam Braindumps (page: 14)

Page 14 of 32
PDF with 122 Questions

What is the final step in an effective troubleshooting process?

  1. Disable the WLAN
  2. Verify the solution
  3. Notify the users of problem resolution
  4. Document the results

Answer(s): D

Explanation:

The final step in an effective troubleshooting process is to document the results. Documentation is essential for keeping track of the problem history, the actions taken, the solutions implemented, and the outcomes achieved. Documentation can also help to prevent future problems, improve best practices, and provide feedback for improvement. Documentation should include relevant information such as problem description, symptoms, root cause analysis, resolution steps, verification methods, and lessons learned.


Reference:

[CWNP Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 513; [CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 483.



You are troubleshooting a problem with interference from a non-802.11 device. Given that the device is not a WLAN device, you cannot use a protocol analyzer and have chosen to use a spectrum analyzer. You want to view the signal from the interfering device over time to see the activity that is generating.
What common spectrum analyzer view should you use for this analysis?

  1. APs
  2. Waterfall/Spectrogram
  3. Real-time FFT
  4. Clients

Answer(s): B

Explanation:

The common spectrum analyzer view that you should use for this analysis is the Waterfall/Spectrogram view. The Waterfall/Spectrogram view shows the signal from the interfering device over time on a three-dimensional graph. The x-axis represents frequency, the y- axis represents time, and the z-axis represents amplitude or power. The color of each pixel indicates the signal strength at a given frequency and time. The Waterfall/Spectrogram view can help you identify the characteristics of the interference source, such as its frequency range, duty cycle, modulation type, and pattern.


Reference:

[CWNP Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 524; [CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 494.



Your manager asked you to locate a solution that allows for centralized monitoring of WLAN performance over time. He wants a single pane of glass for administration and monitoring of the solution.
What do you recommend?

  1. Laptop-based spectrum analyzers
  2. AP-based spectrum analysis
  3. Overlay WLAN monitoring solution
  4. Laptop-based protocol analyzers

Answer(s): C

Explanation:

The solution that you recommend is an Overlay WLAN monitoring solution. An Overlay WLAN monitoring solution is a system that uses dedicated sensors or probes to monitor the WLAN performance over time. The sensors are deployed throughout the WLAN coverage area and collect data on various metrics such as signal strength, noise level, channel utilization, interference, throughput, latency, packet loss, and QoS. The sensors send the data to a centralized server or appliance that analyzes the data and provides a single pane of glass for administration and monitoring of the solution. An Overlay WLAN monitoring solution can help to detect and troubleshoot WLAN issues, optimize WLAN performance, and generate reports and alerts.


Reference:

[CWNP Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 538; [CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 508.



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. Spectrum analysis to locate and identify RF interference sources.
  2. Frequency-band hopping analysis to detect improper RF channel implementations.
  3. Application analysis with an active phone call on an VoWiFi handset.
  4. Protocol analysis to discover channel use on neighboring APs.

Answer(s): C

Explanation:

When performing a post-deployment validation survey for voice over Wi-Fi (VoWiFi), an action that must be performed is Application 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.



Page 14 of 32



Post your Comments and Discuss CWNP CWNA-109 exam with other Community members:

Quentin commented on November 14, 2024
I noticed that some comments were related to answers not being 100% correct. But for me as long as questions are real and same as the actual exam I was okay.
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