Which statement correctly compares traditional networks and controller-based networks?

The correct answer is D. Only controller-based networks decouple the control plane and the data plane. Most traditional devices use a distributed architecture, in which each control plane is resided in a networking device. Therefore they need to communicate with each other via messages to work In contrast to distributed architecture, centralized (or controller-based) architectures

Submitted by yaw92· Mar 5, 2026Automation and Programmability

Question

Which statement correctly compares traditional networks and controller-based networks?

Options

AOnly traditional networks offer a centralized control plane
BOnly traditional networks natively support centralized management
CTraditional and controller-based networks abstract policies from device configurations
DOnly controller-based networks decouple the control plane and the data plane

How the community answered

(26 responses)

A
8% (2)
C
4% (1)
D
88% (23)

Explanation

Most traditional devices use a distributed architecture, in which each control plane is resided in a networking device. Therefore they need to communicate with each other via messages to work In contrast to distributed architecture, centralized (or controller-based) architectures centralizes the control of networking devices into one device, called SDN controller -> Answer D is correct.

Topics

#SDN#controller-based networking#control plane separation#data plane

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