ANS-C01 Network Design Practice Question
A company is migrating its on-premises data center to AWS. The migration requires connectivity between the on-premises network and a VPC. The company needs a connection that supports multiple VLANs for separate environments (development, test, production) and provides consistent performance. The company also wants to avoid using the public internet. Which AWS service should be used?
⚠ Common exam trap
Watch out — candidates often confuse AWS Transit Gateway as a connectivity service, but it is a central hub that requires an underlying connection (like Direct Connect or VPN) to reach on-premises, not a direct replacement for the physical link itself.
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 Direct Connect
AWS Direct Connect is the correct choice because it provides a dedicated, private network connection from on-premises to AWS, bypassing the public internet for consistent performance. It supports multiple VLANs (802.1Q) via Virtual LANs (VLANs) on a single Direct Connect circuit, allowing separate logical networks for development, test, and production environments. This meets the requirements for private connectivity, multi-VLAN support, and predictable performance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS Transit Gateway
Why it's wrong here
Transit Gateway is a hub for connecting multiple VPCs and on-premises networks, not a direct connection service.
- ✓
AWS Direct Connect
Why this is correct
Direct Connect provides a private connection supporting multiple VLANs for environment isolation.
- ✗
AWS Site-to-Site VPN
Why it's wrong here
Site-to-Site VPN uses the public internet and does not support VLANs.
- ✗
AWS Client VPN
Why it's wrong here
Client VPN is for remote user access, not site-to-site connectivity.
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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.