Newest Practice Questions with Answers & Rationales
(2026/2027 Update) ALREADY GRADED A+(MOST
TESTED QUESTIONS)
INTRO
Comprehensive WGU D415 (Software-Defined Networking) Objective
Assessment. Covers SDN architecture, control/data planes, OpenFlow,
northbound/southbound interfaces, SDN controllers, NFV, IBN, SD-
WAN, security, overlays, telemetry, automation, and operations. Each
question includes four options, correct answer, and detailed rationale to
help you prepare confidently for the D415 OA.
Q1–Q40: SDN Fundamentals, Architecture, and Control/Data Planes
Q1. Software-Defined Networking (SDN) primarily seeks to:
A. Increase hardware dependency in the network
B. Decouple the control plane from the data plane and centralize network
intelligence*
C. Eliminate all network automation
D. Focus only on physical security
Rationale: SDN separates control and forwarding functions to enable flexible,
programmable networks.