ANS-C01 Network Implementation Practice Question
A company needs to securely connect multiple VPCs across different AWS Regions using AWS backbone network infrastructure without traversing the public internet. The solution must be managed centrally and support transitive routing between VPCs. Which service should the company use?
⚠ Common exam trap
The ANS-C01 exam often tests the misconception that VPC peering can be used in a full mesh to achieve transitive routing, but candidates must remember that VPC peering is non-transitive and requires explicit routing for each pair.
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
✓
AWS Transit Gateway with inter-region peering.
AWS Transit Gateway with inter-region peering allows you to connect VPCs across different AWS Regions using the AWS global backbone, avoiding the public internet. It provides a central hub for managing connectivity and supports transitive routing between all attached VPCs, which is not possible with VPC peering alone. This makes it the correct choice for a centrally managed, transitive, cross-region solution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
VPC peering connections in a full mesh.
Why it's wrong here
VPC peering does not support transitive routing and requires mesh connectivity.
- ✗
AWS PrivateLink and VPC Endpoints.
Why it's wrong here
PrivateLink provides private connectivity to services, not transitive routing between VPCs.
- ✓
AWS Transit Gateway with inter-region peering.
Why this is correct
Transit Gateway supports transitive routing across VPCs and regions using inter-region peering.
- ✗
AWS ClassicLink.
Why it's wrong here
ClassicLink is deprecated and does not support transitive 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.