Which FQDN must be resolvable for APs to use DNS to locate and register to their WLC?

For APs to discover a WLC using DNS, they must be able to resolve the FQDN cisco-capwap-controller.domain.com. This is a specific, well-known hostname that Cisco APs are hardcoded to look for when using DNS discovery. The WLC's management interface IP address should be mapped to this FQDN in the DNS server. wlchostname.domain.com is too generic and not the specific FQDN APs search for. ap-manager.domain.com is related to the AP Manager interface on the WLC, but not the DNS discovery FQDN. primary-wlc.domain.com is also a generic name and not the standard used for DNS-based WLC discovery.