ABC, Inc. has chosen a WLAN solution that implements a controller-based architecture. The APs will discover the controller using DHCP, broadcast messages, DNS resolution or some other proprietary…

ABC, Inc. has chosen a WLAN solution that implements a controller-based architecture. The APs will discover the controller using DHCP, broadcast messages, DNS resolution or some other proprietary method. During operation, what protocol is likely to be used for the communications between the APs and the controllers?