- A
Centralized control policies are configured on the vSmart controller and affect route advertisement and path selection.
Correct because control policies on vSmart manipulate OMP routes and TLOCs to influence routing decisions.
- B
Localized data policies, such as QoS and ACL, are configured on vEdge or cEdge routers and affect traffic forwarding.
Correct because localized policies are applied directly on the edge devices for per-packet actions.
- C
Application-aware routing policies are a type of localized control policy that steers traffic based on application performance.
Why wrong: Incorrect because app-route policies are centralized data policies, not localized control policies.
- D
Centralized data policies are applied on the edge devices to enforce per-tunnel QoS and ACL rules.
Why wrong: Incorrect because centralized data policies are applied on vSmart, not on edge devices.
- E
vManage is the primary device where all SD-WAN policies are enforced and processed in real time.
Why wrong: Incorrect because vManage is the management plane for configuration and monitoring, not for policy enforcement.
CCNP SD-WAN Architecture Practice Question
This 350-401 practice question tests your understanding of sd-wan architecture. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which two statements about SD-WAN policy architecture are true? (Choose two.)
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
Centralized control policies are configured on the vSmart controller and affect route advertisement and path selection.
Centralized control policies are applied on vSmart to influence routing (e.g., path selection), while localized data policies are applied on edge devices for QoS, ACL, and forwarding. App-route policies are a type of centralized data policy. vManage is for configuration, not policy enforcement. Centralized data policies are applied on vSmart, not edge devices.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Centralized control policies are configured on the vSmart controller and affect route advertisement and path selection.
Why this is correct
Correct because control policies on vSmart manipulate OMP routes and TLOCs to influence routing decisions.
Related concept
Static NAT maps one inside address to one outside address.
- ✓
Localized data policies, such as QoS and ACL, are configured on vEdge or cEdge routers and affect traffic forwarding.
Why this is correct
Correct because localized policies are applied directly on the edge devices for per-packet actions.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Application-aware routing policies are a type of localized control policy that steers traffic based on application performance.
Why it's wrong here
Incorrect because app-route policies are centralized data policies, not localized control policies.
- ✗
Centralized data policies are applied on the edge devices to enforce per-tunnel QoS and ACL rules.
Why it's wrong here
Incorrect because centralized data policies are applied on vSmart, not on edge devices.
- ✗
vManage is the primary device where all SD-WAN policies are enforced and processed in real time.
Why it's wrong here
Incorrect because vManage is the management plane for configuration and monitoring, not for policy enforcement.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 350-401 NAT questions on configuration and troubleshooting.
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SD-WAN Architecture — study guide chapter
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FAQ
Questions learners often ask
What does this 350-401 question test?
SD-WAN Architecture — This question tests SD-WAN Architecture — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Centralized control policies are configured on the vSmart controller and affect route advertisement and path selection. — Centralized control policies are applied on vSmart to influence routing (e.g., path selection), while localized data policies are applied on edge devices for QoS, ACL, and forwarding. App-route policies are a type of centralized data policy. vManage is for configuration, not policy enforcement. Centralized data policies are applied on vSmart, not edge devices.
What should I do if I get this 350-401 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 350-401 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 18, 2026
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.
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