mediumMultiple ChoiceObjective-mapped
CCNP Practice Question: Is troubleshooting a Cisco SD-WAN deployment…
A network engineer is troubleshooting a Cisco SD-WAN deployment where a branch office has two WAN links: a primary MPLS link and a backup LTE link. The engineer wants to configure application-aware routing so that critical applications (e.g., Salesforce) always use the MPLS link as long as its loss is below 2% and latency below 150 ms. The engineer configures an app-route policy on the vSmart with the appropriate SLA requirements. After deployment, the engineer notices that Salesforce traffic is still using the LTE link even when the MPLS link meets the SLA. What is the most likely cause?
⚠ Common exam trap
Cisco often tests the distinction between policy definition and policy attachment, leading candidates to overlook that a correctly defined policy is ineffective if not attached to the appropriate site list or VPN list.
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
✓
The app-route policy is not attached to the correct site list or VPN list.
The app-route policy must be attached to the correct site list and VPN list to be applied to the traffic. If the policy is not properly associated with the site list containing the branch office or the VPN list that includes Salesforce traffic, the vSmart will not enforce the application-aware routing rules, allowing the LTE link to be used even when the MPLS link meets the SLA.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The app-route policy is not attached to the correct site list or VPN list.
Why this is correct
Correct because the policy must be associated with the specific sites and VPNs to be applied.
- ✗
The LTE link has a lower cost metric than the MPLS link.
Why it's wrong here
Incorrect because app-route policy overrides cost-based path selection.
- ✗
The app-route policy was applied on the vEdge instead of the vSmart.
Why it's wrong here
Incorrect because the engineer stated the policy was applied on the vSmart.
- ✗
The SLA requirements are not configured correctly in the policy.
Why it's wrong here
Incorrect because the engineer configured the SLA requirements, but the policy is not being applied due to missing attachment.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.