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.
Which THREE of the following are considerations when designing a multi-account VPC architecture using AWS Transit Gateway? (Choose 3.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Transit Gateway can be integrated with Direct Connect Gateway
AWS Transit Gateway acts as a central hub for interconnecting VPCs and on-premises networks. It can be integrated with Direct Connect Gateway, allowing a single Direct Connect connection to reach multiple VPCs attached to the Transit Gateway, simplifying hybrid network design and reducing operational overhead.
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.
✓
Transit Gateway can be integrated with Direct Connect Gateway
Why this is correct
Direct Connect Gateway can connect to Transit Gateway.
Related concept
Read the scenario before looking for a memorised answer.
Read the scenario before looking for a memorised answer.
✓
Route tables can be used to isolate VPCs from each other
Why this is correct
Separate route tables prevent traffic between VPCs.
Related concept
Read the scenario before looking for a memorised answer.
✗
VPCs with overlapping CIDR blocks can be attached
Why it's wrong here
Overlapping CIDRs cause routing issues unless NAT is used.
Common exam traps
Common exam trap: answer the scenario, not the keyword
AWS often tests the misconception that each VPC must have its own route table in Transit Gateway, but in reality, multiple VPCs can share a single route table for simplified management, and overlapping CIDRs are explicitly unsupported.
Detailed technical explanation
How to think about this question
Transit Gateway uses route tables to control traffic between attachments; you can associate multiple VPC attachments with the same route table to enforce consistent routing policies. In a multi-account architecture, cross-account VPC attachments are enabled via AWS Resource Access Manager (RAM), allowing a central Transit Gateway owner to share the Transit Gateway with other accounts without requiring VPC peering. Overlapping CIDR blocks are a common challenge in mergers or complex environments, but Transit Gateway requires unique CIDR ranges per attachment to maintain deterministic routing.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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: Transit Gateway can be integrated with Direct Connect Gateway — AWS Transit Gateway acts as a central hub for interconnecting VPCs and on-premises networks. It can be integrated with Direct Connect Gateway, allowing a single Direct Connect connection to reach multiple VPCs attached to the Transit Gateway, simplifying hybrid network design and reducing operational overhead.
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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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.
Question Discussion
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