ITPEC FE Morning October 2018 Question 35
ITPEC FE Morning October 2018 — Question 35 of 80
SDN (Software-Defined Networking) — a network technology that separates data forwarding from route control, using software-based controllers (e.g., OpenFlow).
Key idea: SDN decouples the control plane (routing decisions) from the data plane (packet forwarding), centralizing network management in a software controller.
- •OpenFlow is the protocol used between the SDN controller and network switches
- •The controller decides where traffic goes; switches just forward packets
Why not others:
- (a) — describes business process analysis tools (data flow diagrams, activity diagrams)
- (c) — describes IoT/RFID logistics optimization, unrelated to SDN
- (d) — describes CDN (Content Delivery Network), which distributes content via geographically placed servers
Key rule: SDN = software-controlled networking (control plane separated from data plane). CDN = content distribution via edge servers.
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