H12-821_V1.0 · Question #773
The original SDN is the separation of transfer and control. The separation of transfer and control is a method to realize SDN but not the essence.
The correct answer is A. TRUE. Option A is correct because both parts of the statement are accurate: early SDN was conceptually defined by the separation of the control plane (decision-making) from the data plane (packet forwarding), but this separation is merely a mechanism for achieving SDN, not its…
Question
Options
- ATRUE
- BFALSE
How the community answered
(36 responses)- A75% (27)
- B25% (9)
Explanation
Option A is correct because both parts of the statement are accurate: early SDN was conceptually defined by the separation of the control plane (decision-making) from the data plane (packet forwarding), but this separation is merely a mechanism for achieving SDN, not its fundamental essence. The true essence of SDN is centralized, programmable network control - enabling software to dynamically manage network behavior through abstraction, regardless of the specific technique used to achieve it. Option B is wrong because it incorrectly treats the statement as false, when in fact the distinction between "method" and "essence" is a well-established point in SDN theory.
Memory tip: Think of the control/data plane separation as the road, not the destination - SDN's destination is programmable, software-driven networking; the plane separation is just one route to get there.
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