Q37 Multiple choice Mark for later What are two functionalities of SDN southbound APIs? (Choose two.) Select all that apply. A Southbound APIs from the interface between the SDN controller and business applications. B Application layer programs communicate with the SDN controller through the southbound APIs. C OpenFlow is a standardized southbound API protocol used between the SDN controller and the switch. D Southbound APIs form the interface between the SDN controller and the network switches and routers. E Southbound APIs provide a programmable interface for applications to configure the network. Correct answer