Software-defined networking (SDN) uses a controller to manage the devices. The controller is able to inventory hardware components in the network, gather network statistics, make routing decisions based on gathered data, and facilitate communication between devices from different vendors. It can also be used to make wide-spread configuration changes on just one device.
Which of the following best describes an SDN controller?
answer choices
The SDN controller is hardware.
The SDN controller is a virtual networking device.
The SDN controller is software.
The SDN controller is a networking protocol.