What are two functionalities of northbound and southbound APIs within Cisco SDN architecture? (Choose two.)

What are two functionalities of northbound and southbound APIs within Cisco SDN architecture? (Choose two.)
A . Southbound APIs are used to define how SDN controllers integrate with applications.
B . Southbound interfaces utilize device configurations such as VLANs and IP addresses.
C . Northbound APIs utilize RESTful API methods such as GET, POST, and DELET
E . Southbound APIs utilize CLI, SNMP, and RESTCON
G . Northbound interfaces utilize OpenFlow and OpFlex to integrate with network devices.

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Answer: B,D