350-401 Question #451: Real Exam Question with Answer & Explanation

Question

An engineer is troubleshooting the AP join process using DNS. Which FQDN must be resolvable on the network for the access points to successfully register to the WLC?

Options

• Awlchostname.domain.com
• Bcisco-capwap-controller.domain.com
• Cap-manager.domain.com
• Dprimary-wlc.domain.com

Explanation

For access points to discover and join a Wireless LAN Controller (WLC) via DNS, they must be able to resolve the specific FQDN cisco-capwap-controller.domain.com.

Common mistakes.

• A. wlchostname.domain.com is a generic hostname and not the specific FQDN used by Cisco APs for WLC discovery via DNS.
• C. ap-manager.domain.com is not the standard FQDN used for CAPWAP controller discovery; the AP manager interface is an internal WLC interface.
• D. primary-wlc.domain.com is a generic hostname and not the specific FQDN that Cisco APs are configured to resolve for WLC discovery.

Concept tested. Cisco AP CAPWAP WLC DNS discovery

Reference. https://www.cisco.com/c/en/us/support/docs/wireless/aironet-access-points/113354-ap-wlc-registration-troubleshoot.html

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