200-301 · Question #1
200-301 Question #1: Real Exam Question with Answer & Explanation
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
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
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.
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