300-430 Question 259
Select 3You are troubleshooting a wireless network in an enterprise environment and notice a significant drop in performance in a specific area of the building. Using Cisco Prime Infrastructure, you identify a non-Wi-Fi RF interferer in the affected area. Which of the following actions should you take to mitigate the interference and restore network performance?
- A
Relocate the interfering device to minimize its impact on the wireless coverage area.
- B
Change the channel of the affected access points to avoid interference from the identified RF source.
- C
Increase the transmit power of the access points in the affected area to overpower the interference.
- D
Deploy a spectrum analyzer to identify additional details about the interfering device and its signal characteristics.
- E
Add more access points in the affected area to provide redundancy and overcome the interference.
Show answer and explanation
Correct answers: A, B, D
Explanation
To manage RF interference effectively, it is important to address the root cause of the interference. Relocating the interfering device, avoiding its frequency range by changing the access point channel, and using a spectrum analyzer to gather more information are all appropriate actions to mitigate RF interference. Increasing AP power or adding more APs may exacerbate the issue rather than resolve it.
- A. Correct.
Relocating the interfering device, if possible, can significantly reduce its impact on the wireless network. This is an effective mitigation strategy for non-Wi-Fi RF interferers.
- B. Correct.
Changing the channel of the affected access points is a practical solution to avoid frequency overlap with the interfering source, thereby improving network performance.
- C. Incorrect.
Increasing the transmit power of the access points may lead to co-channel interference and is generally not recommended as it doesn't address the root cause of the problem.
- D. Correct.
Using a spectrum analyzer can help gather detailed information about the interferer, such as its frequency, power, and behavior, enabling you to take more targeted mitigation steps.
- E. Incorrect.
Adding more access points does not solve the interference issue and can lead to overlapping coverage areas that further degrade performance.