200-301: Cisco Certified Network AssociateDemo

By Cisco · Question Mode

QuestionQ1140

Automation and Programmability

What is the role of a controller in controller-based networking?

  • A It serves as the centralized management point of an SDN architecture
  • B It is a pair of core routers that maintain all routing decisions for a campus
  • C It centralizes the data plane for the network
  • D It is the card on a core router that maintains all routing decisions for a campus.
Explanation

A controller in controller-based networking serves as the logically centralized management and control point for the network. In SDN, the controller abstracts and centralizes control/management functions while the forwarding devices continue to handle the data plane. That is why the correct description is the centralized management point of the architecture, not a router pair, not a router card, and not the data plane itself.

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