The answer is to share the Transit Gateway using Resource Access Manager, create a Transit Gateway route table, and associate the VPC attachments with that route table. This multi-account Transit Gateway setup centralizes network management by allowing a single Transit Gateway in a hub account to be shared with multiple spoke accounts via RAM, eliminating the need for VPC peering. Each VPC attachment must then be associated with a route table to propagate and route traffic correctly across accounts. On the AWS Certified Advanced Networking Specialty ANS-C01 exam, this scenario tests your understanding of the shared services model and the distinction between Transit Gateway and VPC peering—a common trap is assuming you need a separate Transit Gateway per account or that VPC peering is still required. Remember the mnemonic: Share, Table, Attach—you share the gateway, build a route table, and attach the VPCs to it.
ANS-C01 Network Implementation Practice Question
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 is designing a multi-account AWS environment using AWS Transit Gateway. They want to centralize network management and ensure that VPCs in different accounts can communicate. Which THREE steps are required to achieve this? (Select THREE.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a Transit Gateway in the central networking account
Options A, B, and D are correct. You need to share the Transit Gateway using Resource Access Manager (RAM), create a transit gateway route table, and associate the VPC attachments with the route table. Option C is wrong because VPC peering is not needed when using Transit Gateway. Option E is wrong because you do not need to create a separate Transit Gateway in each account; you share a central one.
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 a Transit Gateway in the central networking account
Why this is correct
A central Transit Gateway is created in the networking account.
Related concept
Read the scenario before looking for a memorised answer.
✓
Use AWS Resource Access Manager (RAM) to share the Transit Gateway with other accounts
Why this is correct
RAM allows sharing the Transit Gateway with other accounts.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create a separate Transit Gateway in each account and peer them together
Why it's wrong here
Using a single shared Transit Gateway is simpler and more scalable.
✓
Create a Transit Gateway route table and associate VPC attachments
Why this is correct
Route tables control traffic between attachments.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create a VPC peering connection between each VPC and the Transit Gateway
Why it's wrong here
VPCs attach to the Transit Gateway, not via VPC peering.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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
Got this wrong? Here's your next step.
Identify which ANS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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 Transit Gateway in the central networking account — Options A, B, and D are correct. You need to share the Transit Gateway using Resource Access Manager (RAM), create a transit gateway route table, and associate the VPC attachments with the route table. Option C is wrong because VPC peering is not needed when using Transit Gateway. Option E is wrong because you do not need to create a separate Transit Gateway in each account; you share a central one.
What should I do if I get this ANS-C01 question wrong?
Identify which ANS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
✓ D.Route tables can be used to isolate VPCs from each other
E.VPCs with overlapping CIDR blocks can be attached
Why A: 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.
Last reviewed: Jun 20, 2026
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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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