- A
Direct Connect Gateway
Direct Connect Gateway can be associated with a transit gateway.
- B
Internet Gateway
Why wrong: Internet gateways are attached to VPCs, not transit gateways.
- C
Site-to-Site VPN connection
VPN connections can be attached to a transit gateway.
- D
VPC
VPCs can be attached to a transit gateway.
- E
Network Load Balancer
Why wrong: NLBs are not directly attached to transit gateways.
Question 1,571 of 1,705
Transit Gateway Attachment Types — VPC, VPN, Direct Connect Gateway | AWS Advanced Networking Specialty Explained
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.
A company has multiple VPCs that need to communicate with each other and with an on-premises network via AWS Transit Gateway. Which THREE of the following are valid attachment types for a transit gateway?
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
AWS Transit Gateway supports attachments to Direct Connect Gateways, enabling integration of Direct Connect virtual interfaces with the transit gateway for hybrid connectivity. This allows traffic from on-premises networks connected via Direct Connect to be routed through the transit gateway to multiple VPCs and other attachments.
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.
- ✓
Direct Connect Gateway
Why this is correct
Direct Connect Gateway can be associated with a transit gateway.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Internet Gateway
Why it's wrong here
Internet gateways are attached to VPCs, not transit gateways.
- ✓
Site-to-Site VPN connection
- ✓
VPC
Why this is correct
VPCs can be attached to a transit gateway.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Network Load Balancer
Why it's wrong here
NLBs are not directly attached to transit gateways.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The ANS-C01 exam often tests the misconception that any AWS networking component can be attached to a Transit Gateway, but only VPCs, Site-to-Site VPN connections, and Direct Connect Gateways are valid attachment types.
Detailed technical explanation
How to think about this question
Transit Gateway uses attachment objects to connect network resources, each with its own route table association and propagation settings. For Direct Connect Gateway attachments, the Transit Gateway must be associated with a Direct Connect Gateway in the same AWS Region, and the Direct Connect Gateway must have a private virtual interface (VIF) to the on-premises network, enabling BGP-based routing between the Transit Gateway and the on-premises routers.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
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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: Direct Connect Gateway — AWS Transit Gateway supports attachments to Direct Connect Gateways, enabling integration of Direct Connect virtual interfaces with the transit gateway for hybrid connectivity. This allows traffic from on-premises networks connected via Direct Connect to be routed through the transit gateway to multiple VPCs and other attachments.
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
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.
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