Which technology virtualizes the network control plane and moves it to a centralized controller?
- SDN
- IaaS
- cloud computing
- fog computing
Answers Explanation & Hints: Networking devices operate in two planes: the data plane and the control plane. The control plane maintains Layer 2 and Layer 3 forwarding mechanisms using the CPU. The data plane forwards traffic flows. SDN virtualizes the control plane and moves it to a centralized network controller.