When using DNS discovery, you must configure DNS to respond to which of the following?
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A. B. C. D.C.
When using DNS discovery to discover wireless LAN controllers (WLCs), the DNS server must be configured to respond to a specific domain name. This domain name is used by the WLC to resolve the IP address of the controller.
The domain name used by the WLC for DNS discovery varies depending on the version of the WLC software and the type of WLC.
In the case of Cisco WLCs, there are several domain names that can be used for DNS discovery:
A. CISCO-WAP-CONTROLLER.localdomain This domain name is used by Cisco WLCs running software version 7.0 or earlier.
B. CISCO-CONTROLLER.localdomain This domain name is used by Cisco WLCs running software version 7.2 or later.
C. CISCO-CAPWAP-CONTROLLER.localdomain or CISCO-LWAPP-CONTROLLER.localdomain These domain names are used by Cisco WLCs running software version 8.0 or later.
D. CISCO-CONTROLLER-LWAPP.localdomain or CISCO-CONTROLLER-CAPWAP.localdomain These domain names are used by Cisco WLCs running software version 8.3 or later.
Therefore, to ensure that DNS discovery works correctly, the DNS server must be configured to respond to the appropriate domain name based on the version of the WLC software and the type of WLC.