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Exam 300-430 topic 1 question 256 discussion

Actual exam question from Cisco's 300-430
Question #: 256
Topic #: 1
[All 300-430 Questions]



Refer to the exhibit. An administrator sees interferers that cause connectivity issues in the 2.4GHz band. The DCA cycle on the Cisco Catalyst 9800 Series wireless controller runs every six hours for this band. The RF environment is dynamic on that floor, so the APs must change channels when a certain level of interference is detected. Which feature should be enabled to manage the interference?

  • A. Air Quality Alarms
  • B. Event-Driven RRM
  • C. Interference Device Alarms
  • D. Unclassified interference
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Suggested Answer: B 🗳️

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rrahim
2 months, 2 weeks ago
Selected Answer: B
Event-Driven RRM (Radio Resource Management) is the feature that should be enabled to manage interference in a dynamic RF environment. Unlike the standard DCA (Dynamic Channel Assignment), which runs on a fixed schedule (e.g., every 6 hours), Event-Driven RRM allows the Cisco Catalyst 9800 Series Wireless Controller to respond immediately to changes in the RF environment, such as interference or noise. How Event-Driven RRM Works: When interference or noise exceeds a predefined threshold, Event-Driven RRM triggers an immediate channel change for affected APs. This ensures that APs can adapt to dynamic RF conditions in real time, improving network performance and reducing connectivity issues. Why It’s the Best Solution: In a dynamic RF environment, waiting for the next DCA cycle (e.g., every 6 hours) is not sufficient to address interference issues. Event-Driven RRM provides a proactive approach to managing interference, ensuring that APs switch channels as soon as interference is detected.
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