300-425 Question 144
Select 3A retail store has deployed a Cisco wireless network and is experiencing issues with rogue access points interfering with its operations. The network administrator wants to detect and locate these rogue devices using the Cisco Wireless LAN Controller (WLC). Which of the following methods can be used to detect and locate rogue devices in this scenario?
- A
Enable rogue detection on the Cisco WLC and configure APs to operate in hybrid mode.
- B
Use the Cisco WLC’s Rogue Location Discovery Protocol (RLDP) feature.
- C
Analyze collected data using Cisco DNA Center’s location services.
- D
Manually scan for rogue devices using a spectrum analyzer.
- E
Enable Radio Resource Management (RRM) to automatically block rogue devices.
Show answer and explanation
Correct answers: A, B, C
Explanation
Detecting and locating rogue devices in a Cisco wireless network involves leveraging the features of the WLC and supporting tools like RLDP and Cisco DNA Center. Rogue detection on hybrid-mode APs, RLDP, and location services in Cisco DNA Center provide an automated and integrated approach to this task. Manual tools like spectrum analyzers are less efficient and do not integrate with Cisco's wireless ecosystem, and RRM does not address rogue detection.
- A. Correct.
Correct: Enabling rogue detection on the WLC and configuring access points in hybrid mode allows the APs to serve clients while simultaneously scanning for rogue devices.
- B. Correct.
Correct: Rogue Location Discovery Protocol (RLDP) is specifically designed to detect and locate rogue access points by probing devices to verify their connection to the wired network.
- C. Correct.
Correct: Cisco DNA Center’s location services can analyze wireless data, including AP telemetry, to pinpoint rogue device locations on a map.
- D. Incorrect.
Incorrect: While a spectrum analyzer can detect interference, it is a manual process and does not integrate with WLC or Cisco DNA Center for rogue detection and location.
- E. Incorrect.
Incorrect: Radio Resource Management (RRM) optimizes channel and power settings for network performance but does not have the capability to detect or block rogue devices.