ANS-C01 Network Management and Operations Practice Question
A company has a hub-and-spoke network architecture using AWS Transit Gateway. The hub VPC contains a central inspection appliance (NVA) for traffic inspection. Spoke VPCs are attached to the Transit Gateway and have routes pointing to the Transit Gateway for all traffic. The Transit Gateway has a default route table that routes traffic to the NVA for inspection. Recently, the network team noticed that traffic between two spoke VPCs is not being inspected. The team verified that the Transit Gateway route tables are correctly configured and that the NVA is healthy. What should the team do to ensure that inter-spoke traffic is inspected?
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
✓
Configure route propagation in the Transit Gateway route tables to propagate routes from the spoke attachments
Configuring route propagation in the Transit Gateway route tables from the spoke attachments allows the Transit Gateway to learn the specific CIDR blocks of each spoke VPC. With these routes, the Transit Gateway can forward inter-spoke traffic to the NVA for inspection. Option B is incorrect because VPC Flow Logs only capture traffic logs and do not affect routing. Option C is incorrect because adding static routes in the spoke VPC route tables pointing to the NVA would bypass the Transit Gateway and break the hub-and-spoke design. Option D is incorrect because bandwidth increase does not address the routing issue.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure route propagation in the Transit Gateway route tables to propagate routes from the spoke attachments
Why this is correct
Propagation ensures that spoke routes are learned and traffic is forwarded to the NVA for inspection.
- ✗
Enable VPC Flow Logs on the spoke VPCs to capture traffic
Why it's wrong here
Flow Logs only capture logs, they do not route traffic.
- ✗
Add static routes in the spoke VPC route tables pointing to the NVA
Why it's wrong here
Static routes may not be dynamic and could become stale if NVA fails over.
- ✗
Increase the bandwidth of the Transit Gateway attachments
Why it's wrong here
Bandwidth does not affect inspection routing.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This ANS-C01 practice question is part of Courseiva's free Amazon Web Services 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 ANS-C01 exam.