200-901 Network Fundamentals Practice Question
A software-defined networking (SDN) controller is being deployed to manage network devices. Which two components are part of the SDN architecture? (Choose two.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Data plane
The control plane (decides traffic flow) and data plane (forwards traffic) are the two key planes in SDN, with the controller centralizing the control plane.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Data plane
Why this is correct
The data plane forwards traffic based on decisions from the control plane.
- ✓
Control plane
Why this is correct
The control plane makes decisions about where traffic should be sent.
- ✗
Application plane
Why it's wrong here
Application plane is sometimes used, but the core SDN architecture consists of control and data planes.
- ✗
Forwarding plane
Why it's wrong here
Forwarding plane is synonymous with data plane, but the question asks for two distinct components; control and data are the standard pair.
- ✗
Management plane
Why it's wrong here
While part of networking, the management plane is not a distinct SDN architecture component in the same sense.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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