CCNA: Cisco Certified Network Associate — Question 312

Which plane is centralized by an SDN controller?

Answer options

• A. management-plane
• B. data-plane
• C. services-plane
• D. control-plane

Correct answer: D

Explanation

The control-plane is responsible for the management and routing of data traffic within a network, and it is centralized by the SDN controller. The management-plane handles administrative tasks, the data-plane is where the actual data packets travel, and the services-plane refers to additional functionalities that can be provided, but none of these are centralized by the SDN controller like the control-plane is.