The transit authority evaluates software-defined networking for its core. Which architecture implication of SDN is most accurate?
Select an answer to reveal the explanation.
Short Explanation
SDN is like a traffic control tower talking to many intersections—brains in one place, cars still on the roads. Central policy programming is the point, not ditching policy. CLI-per-box forever is the old model SDN is trying to improve.
Full Explanation
Software-defined networking separates the control plane from the data/forwarding plane, enabling centralized, programmable policy that is enforced on forwarding devices. That separation is a core architecture implication for how network security policy is authored and applied. SDN does not eliminate policy needs, merge planes into per-box-only management as its defining trait, or limit itself only to wireless guest use cases.