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Exams300-365Questions#57
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300-365 · Question #57

300-365 Question #57: Real Exam Question with Answer & Explanation

The correct answer is D: Verify the access points are spread out between the primary and secondary controller and that. When clients reauthenticate during roaming in an N+1 controller deployment, the engineer must verify that APs are correctly distributed across controllers and that inter-controller roaming is properly configured.

Wireless Troubleshooting and Optimization

Question

A customer called into the support center with a problem ticket that involves wireless clients having to reauthenticate when they are walking around their office. After further investigation, it was discovered that the customer has two controllers in an N+1 deployment. Which action must the engineer take to troubleshoot the issue?

Options

  • AVerify that the wireless controllers are in the same mobility group and that the access points are
  • BUnder the SSID, make sure that 802.1 Iris configured and running for the clients.
  • CMake sure that the SSID has the authentication set to 802.1x with Cisco Centralized Key
  • DVerify the access points are spread out between the primary and secondary controller and that

Explanation

When clients reauthenticate during roaming in an N+1 controller deployment, the engineer must verify that APs are correctly distributed across controllers and that inter-controller roaming is properly configured.

Common mistakes.

  • A. While mobility group membership is relevant, verifying AP distribution specifically addresses the roaming reauthentication symptom in an N+1 scenario - this choice is incomplete as stated.
  • B. 802.1X on the SSID is an authentication method configuration, not a roaming-specific setting, and would not directly explain reauthentication triggered by physical movement between APs.
  • C. Cisco Centralized Key Management (CCKM) helps reduce reauthentication overhead but configuring it alone does not resolve the underlying inter-controller mobility trust issue causing the reauthentication.

Concept tested. Inter-controller roaming and mobility group troubleshooting

Reference. https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/config-guide/b_cg85/roaming.html

Topics

#N+1 HA#roaming#reauthentication#AP load distribution

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