- A
Create VPC peering connections from the VPC with the Direct Connect VIF to the other VPCs.
Why wrong: VPC peering does not extend Direct Connect to peered VPCs; routes are not transitive.
- B
Create a Direct Connect gateway and associate it with a Transit Gateway that is attached to the VPCs.
A Direct Connect gateway can be associated with multiple virtual private gateways or a Transit Gateway to connect to multiple VPCs.
- C
Provision separate private VIFs for each VPC.
Why wrong: This is possible but not the most efficient; Direct Connect gateway allows sharing a single VIF.
- D
Use a Transit VIF to connect directly to a Transit Gateway.
Why wrong: Transit VIF still requires a Direct Connect gateway for multi-VPC connectivity.
Question 743 of 1,705
Extending Direct Connect to Multiple VPCs: DX Gateway + Transit Gateway
This ANS-C01 practice question tests your understanding of network implementation. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An organization is using AWS Direct Connect with a private VIF to connect to a VPC. They want to extend connectivity to multiple VPCs in the same region without creating multiple private VIFs. Which solution should they implement?
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 a Direct Connect gateway and associate it with a Transit Gateway that is attached to the VPCs.
A Direct Connect gateway allows you to associate a single private VIF with multiple VPCs in the same region by connecting to a Transit Gateway. The Transit Gateway then acts as a hub, enabling transitive routing between all attached VPCs without needing separate VIFs. This solution scales efficiently and avoids the complexity of managing multiple private VIFs.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create VPC peering connections from the VPC with the Direct Connect VIF to the other VPCs.
Why it's wrong here
VPC peering does not extend Direct Connect to peered VPCs; routes are not transitive.
- ✓
Create a Direct Connect gateway and associate it with a Transit Gateway that is attached to the VPCs.
Why this is correct
A Direct Connect gateway can be associated with multiple virtual private gateways or a Transit Gateway to connect to multiple VPCs.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Provision separate private VIFs for each VPC.
Why it's wrong here
This is possible but not the most efficient; Direct Connect gateway allows sharing a single VIF.
- ✗
Use a Transit VIF to connect directly to a Transit Gateway.
Why it's wrong here
Transit VIF still requires a Direct Connect gateway for multi-VPC connectivity.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Transit VIFs with private VIFs, thinking a Transit VIF can directly connect to a Transit Gateway, but in reality, a Transit VIF always connects to a Direct Connect gateway, which then associates with a Transit Gateway.
Detailed technical explanation
How to think about this question
A Direct Connect gateway is a globally available resource that can be associated with up to 10 Transit Gateways per account, and each Transit Gateway can route traffic between hundreds of VPCs. The private VIF terminates on the Direct Connect gateway, which then uses BGP to exchange routes with the Transit Gateway, enabling seamless connectivity across all attached VPCs. In real-world scenarios, this architecture is critical for large enterprises that need to connect multiple VPCs for shared services or hybrid cloud workloads without exceeding VIF limits.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Implementation — This question tests Network Implementation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a Direct Connect gateway and associate it with a Transit Gateway that is attached to the VPCs. — A Direct Connect gateway allows you to associate a single private VIF with multiple VPCs in the same region by connecting to a Transit Gateway. The Transit Gateway then acts as a hub, enabling transitive routing between all attached VPCs without needing separate VIFs. This solution scales efficiently and avoids the complexity of managing multiple private VIFs.
What should I do if I get this ANS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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