7.3 Manage RF Interferers 300-430 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A university uses Cisco Catalyst Center for wireless assurance. During a network health review, the RF analytics dashboard flags a high number of 'interferer' events in the student union building. The administrator needs to determine whether the interference is coming from a specific device or from an external source. Which Catalyst Center feature should be used to get the most detailed diagnostic information?

   • AThe 'Client 360' view for a client that is experiencing poor performance, which shows the client's RSSI and SNR over time.
   • BThe 'Network Devices' inventory page, which shows the firmware version and RF configuration of each AP.
   • CThe 'RF Spectrum' page for the affected AP, which shows real-time FFT plots and duty cycle for the interfering signal.
   • DThe 'Interferers' report under the Assurance > Reports menu, which lists all detected interferers by severity and location.
   Reveal Solution Discussion Select an answer first
2. 12expert · hard

   A warehouse uses a WLC-managed WLAN for handheld scanners. The WLC CleanAir reports a 'Continuous Wave' interferer on channel 11. The interferer is identified as a faulty LED light. The warehouse cannot replace the light immediately. The scanners are 2.4 GHz-only. What is the best immediate action to maintain scanner connectivity?

   • AManually move the APs in that area to channel 1 or 6.
   • BIncrease the transmit power of the affected APs.
   • CDisable the 2.4 GHz radio on the affected APs and use 5 GHz only.
   • DEnable RRM to automatically adjust channels and power.
   Reveal Solution Discussion Select an answer first
4. 13expert · hard

   A university uses Cisco Catalyst Center for wireless assurance. The RF analytics dashboard shows a high number of 'interferer' events in the library, but the WLC's CleanAir does not show any non-Wi-Fi interferers. The administrator suspects that the interferers are from a neighboring Wi-Fi network. The university wants to improve the student experience without changing the channel plan. What is the best action?

   • AUse Catalyst Center's 'Interferer' details to identify the neighboring Wi-Fi network and then work with the neighbor to reduce the interference.
   • BDisable CleanAir on the affected APs to prevent the neighboring Wi-Fi from being reported.
   • CIncrease the transmit power of the APs to overcome the neighboring Wi-Fi interference.
   • DEnable 'Event-Driven RRM' on the WLC to automatically move APs to a cleaner channel when the neighboring Wi-Fi is detected.
   Reveal Solution Discussion Select an answer first
5. 14application · medium

   A restaurant uses a WLC-managed WLAN. Customers complain about Wi-Fi in the dining area. The WLC CleanAir shows a 'Cordless Phone' interferer on channel 1. The restaurant staff uses cordless phones for orders. The restaurant cannot replace the phones. What should you do?

   • AIncrease the transmit power of the APs.
   • BDisable the 2.4 GHz radio on the APs.
   • CEnable band steering to push clients to 5 GHz.
   • DMove the APs in the dining area to channel 6 or 11.
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   A clinic uses a WLC-managed WLAN. The WLC CleanAir shows a 'Microwave Oven' interferer on channel 6 during lunch hours. The clinic staff uses the microwave in the break room. The clinic wants to keep the microwave. What is the best WLC configuration to minimize impact?

   • AIncrease the transmit power of the APs near the break room.
   • BDisable CleanAir on the APs near the break room.
   • CManually assign the APs near the break room to channel 1 or 11.
   • DSchedule RRM to run during lunch hours to move APs to cleaner channels.
   Reveal Solution Discussion Select an answer first