ITPEC FE Morning October 2019 Question 34
ITPEC FE Morning October 2019 — Question 34 of 80
Software-Defined Networking (SDN) — architecture that decouples network control from forwarding.
Core idea:
- Control plane (decision-making) is separated from data/forwarding plane (packet movement)
- Network becomes directly programmable via a centralized controller
- Infrastructure is abstracted from applications
Why not others:
- (a) Cloud computing — on-demand delivery of compute resources, not about control/forwarding separation
- (b) Internet of Things — network of physical devices with sensors, unrelated concept
- (c) Network Function Virtualization (NFV) — replaces dedicated hardware appliances with virtual functions on commodity servers; related but distinct from SDN
Key distinction: SDN separates control from forwarding; NFV virtualizes network functions onto general-purpose hardware.
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