ANS-C01 Network Implementation Practice Question
A company is using AWS Direct Connect to connect its on-premises data center to a VPC. The company wants to use a single Direct Connect connection to connect to multiple VPCs in different AWS accounts. Which AWS service should be used to achieve this?
⚠ Common exam trap
A common mix-up: candidates confuse Transit Gateway with Direct Connect Gateway, thinking Transit Gateway can natively handle multi-account Direct Connect sharing, but Transit Gateway requires a Direct Connect Gateway attachment to do so, making the Direct Connect Gateway the essential component for this specific use case.
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
✓
Direct Connect Gateway
A Direct Connect Gateway (DX Gateway) is the correct service because it allows a single Direct Connect connection to be associated with multiple VPCs across different AWS accounts and regions. The DX Gateway acts as a regional or global transit hub, enabling private connectivity from on-premises to multiple VPCs without needing separate Direct Connect connections for each VPC. This is achieved by associating the DX Gateway with virtual private gateways (VGWs) in each target VPC, and then using AWS Resource Access Manager (RAM) to share the DX Gateway with other accounts.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Direct Connect Gateway
Why this is correct
Direct Connect Gateway enables connectivity to multiple VPCs over a single Direct Connect connection.
- ✗
Transit Gateway
Why it's wrong here
Transit Gateway can be used with Direct Connect Gateway, but the question asks for the service that allows a single Direct Connect connection to reach multiple VPCs across accounts.
- ✗
AWS Site-to-Site VPN
Why it's wrong here
VPN is a different technology; Direct Connect Gateway is the correct service.
- ✗
VPC Peering
Why it's wrong here
VPC peering does not extend Direct Connect connectivity.
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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.