Which plane is centralized in software-defined networking (SDN)?
Choose an answer
Tap an option to check your answer.
Correct answer: control.
Why this is the answer
In SDN, the control plane is centralized. This means network intelligence and decision-making are decoupled from individual network devices and managed by a central controller. This controller dictates how data flows across the network. The data plane, also known as the forwarding plane, remains distributed; it's responsible for forwarding traffic based on instructions from the centralized control plane. The application plane interacts with the control plane to request network services, but it's not centralized in the same way. The term "services plane" is not a standard SDN architectural plane.
Pass your exam — without the endless answer hunt
Get every verified question and explanation for this exam in one place, and save hours of prep. 1,000+ certifications · 20+ languages · free to start.
Pass your exam faster → No card needed