CCNP Architecture Practice Question
A network administrator is deploying a new Cisco SD-WAN solution. The administrator needs to ensure that the control plane is separated from the data plane and that the solution can dynamically select the best path for application traffic based on policies. Which component of Cisco SD-WAN is responsible for centralized control plane functions and distributing routing information to the WAN Edge devices?
⚠ Common exam trap
Watch out — candidates often confuse the management plane (vManage) with the control plane (vSmart), or assuming vBond handles routing.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
vSmart
vSmart is the centralized control plane in Cisco SD-WAN, using OMP to distribute routing and policies to WAN Edge devices. It enables dynamic path selection and separates control from data plane. vManage is management, vBond is orchestration, and WAN Edge is data plane.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
WAN Edge
Why it's wrong here
WAN Edge devices are the data plane components that forward traffic and enforce policies. They receive routing information from the control plane but do not distribute it to other devices. They are not responsible for centralized control plane functions; that role belongs to vSmart.
- ✗
vManage
Why it's wrong here
vManage is the management plane component that provides a GUI for configuration, monitoring, and troubleshooting. It does not distribute routing information or handle control plane functions. While it is essential for orchestrating policies, it does not participate in the control plane routing decisions or path selection.
- ✗
vBond
Why it's wrong here
vBond is the orchestrator that handles initial authentication and NAT traversal, allowing WAN Edge devices to join the overlay. It does not distribute routing information or perform control plane functions beyond initial onboarding. It is not responsible for dynamic path selection or policy distribution.
- ✓
vSmart
Why this is correct
vSmart is the centralized control plane component of Cisco SD-WAN. It distributes routing information, policies, and keys to the WAN Edge devices. It uses Overlay Management Protocol (OMP) to exchange routes and policies, enabling dynamic path selection based on application policies. This matches the requirement for centralized control plane functions.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
This 350-401 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-401 exam.