ANS-C01 Network Implementation Practice Question
A company is deploying a multi-VPC architecture with connectivity requirements. The network team needs to establish private connectivity between VPCs in the same AWS account and region, using services that can scale to 100 Gbps throughput. Which solution meets these requirements?
⚠ Common exam trap
The ANS-C01 exam often tests the misconception that VPC peering can scale to high throughput by simply adding more connections, but the trap here is that VPC peering has a per-connection bandwidth cap (typically 10 Gbps) and lacks transitive routing, making it unsuitable for high-throughput multi-VPC architectures compared to Transit Gateway's hub-and-spoke design.
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
✓
Create an AWS Transit Gateway and attach all VPCs to it
AWS Transit Gateway (TGW) acts as a regional hub-and-spoke router that can interconnect thousands of VPCs and on-premises networks, supporting burst throughput up to 100 Gbps per attachment. It simplifies multi-VPC connectivity by eliminating the need for full-mesh peering and provides centralized routing, making it the only option that meets both the scalability and private connectivity requirements.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use AWS PrivateLink with Network Load Balancers to connect VPCs
Why it's wrong here
PrivateLink is for accessing specific services, not for general VPC-to-VPC connectivity.
- ✗
Deploy AWS Client VPN and configure routes between VPCs
Why it's wrong here
Client VPN is for remote user access, not for VPC-to-VPC connectivity.
- ✓
Create an AWS Transit Gateway and attach all VPCs to it
Why this is correct
Transit Gateway provides scalable connectivity up to 100 Gbps per attachment.
- ✗
Configure VPC peering connections between each pair of VPCs
Why it's wrong here
VPC peering is point-to-point and does not support 100 Gbps per connection.
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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.