Which two methods are used by an AP that is typing to discover a wireless LAN controller? (Choose two.)

While Cisco Discovery Protocol (CDP) can help an AP identify its directly connected switch, it is not a direct method for an AP to discover and join a Wireless LAN Controller.

Access points can discover a WLC by sending broadcast CAPWAP discovery messages on their local subnet (Layer 2 discovery). Any WLC configured to listen for these broadcasts on that subnet can respond to the AP.

DNS lookup is a valid method for WLC discovery, but the specific domain name used by CAPWAP APs is `cisco-capwap-controller.localdomain`, not `cisco-DNA-PRIMARY.localdomain`.

DHCP Option 43 allows a DHCP server to provide the IP addresses of one or more wireless LAN controllers to an access point during its DHCP lease negotiation. This is a highly scalable and common method for AP discovery in larger networks.

An AP typically discovers the WLC directly through various mechanisms; it does not query other APs to find the controller.