What are two functionalities of SDN Northbound APIs? (Choose two.)

Northbound APIs offer a high-level, abstract, and programmable interface that enables applications and orchestration systems to interact with the SDN controller, allowing for dynamic configuration and control of network resources and services.

Northbound APIs serve as the crucial communication interface between the SDN controller's control plane and higher-level business applications, orchestration tools, and policy engines that need to consume and provision network services.

OpenFlow is primarily a Southbound API protocol, used for communication between the SDN controller and the network data plane (switches/routers), not Northbound.

While NETCONF can be used in network management, Northbound APIs are often RESTful or other application-level interfaces and are not exclusively or primarily defined by the NETCONF protocol.

This describes the function of Southbound APIs, which facilitate communication between the SDN controller and the underlying network switches or data plane elements.