- A
Step 1: Create the transit gateway. Step 2: Create transit gateway attachments to VPCs. Step 3: Associate attachments with a transit gateway route table. Step 4: Update VPC route tables to point to the transit gateway. Step 5: Test connectivity.
This is the correct order because the transit gateway must exist before attachments can be created. Attachments must be associated with a route table before the route table can be updated in VPC routes. Finally, testing validates the configuration.
- B
Step 1: Create transit gateway attachments to VPCs. Step 2: Create the transit gateway. Step 3: Update VPC route tables. Step 4: Associate attachments with a route table. Step 5: Test connectivity.
Why wrong: This is incorrect because the transit gateway must exist before attachments can be created. Also, VPC routes should be updated after the route table association, not before.
- C
Step 1: Create the transit gateway. Step 2: Update VPC route tables. Step 3: Create transit gateway attachments. Step 4: Associate attachments with a route table. Step 5: Test connectivity.
Why wrong: This is incorrect because VPC route tables cannot point to the transit gateway before attachments and route table associations exist. The correct order requires creating attachments and associating them before updating VPC routes.
- D
Step 1: Create the transit gateway. Step 2: Create transit gateway attachments. Step 3: Update VPC route tables. Step 4: Associate attachments with a route table. Step 5: Test connectivity.
Why wrong: This is incorrect because VPC routes should be updated after the attachments are associated with a transit gateway route table, not before. The association must happen first to define how traffic is routed.
Step-by-Step Guide to Configure AWS Transit Gateway with VPC Attachments
This ANS-C01 practice question tests your understanding of network design. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Arrange the steps to configure an AWS Transit Gateway with attachments to multiple VPCs:
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
Step 1: Create the transit gateway. Step 2: Create transit gateway attachments to VPCs. Step 3: Associate attachments with a transit gateway route table. Step 4: Update VPC route tables to point to the transit gateway. Step 5: Test connectivity.
First create the transit gateway, then create attachments, associate them with a route table, update VPC routes, and test connectivity.
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.
- ✓
Step 1: Create the transit gateway. Step 2: Create transit gateway attachments to VPCs. Step 3: Associate attachments with a transit gateway route table. Step 4: Update VPC route tables to point to the transit gateway. Step 5: Test connectivity.
Why this is correct
This is the correct order because the transit gateway must exist before attachments can be created. Attachments must be associated with a route table before the route table can be updated in VPC routes. Finally, testing validates the configuration.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Step 1: Create transit gateway attachments to VPCs. Step 2: Create the transit gateway. Step 3: Update VPC route tables. Step 4: Associate attachments with a route table. Step 5: Test connectivity.
Why it's wrong here
This is incorrect because the transit gateway must exist before attachments can be created. Also, VPC routes should be updated after the route table association, not before.
- ✗
Step 1: Create the transit gateway. Step 2: Update VPC route tables. Step 3: Create transit gateway attachments. Step 4: Associate attachments with a route table. Step 5: Test connectivity.
Why it's wrong here
This is incorrect because VPC route tables cannot point to the transit gateway before attachments and route table associations exist. The correct order requires creating attachments and associating them before updating VPC routes.
- ✗
Step 1: Create the transit gateway. Step 2: Create transit gateway attachments. Step 3: Update VPC route tables. Step 4: Associate attachments with a route table. Step 5: Test connectivity.
Why it's wrong here
This is incorrect because VPC routes should be updated after the attachments are associated with a transit gateway route table, not before. The association must happen first to define how traffic is routed.
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.
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Design — This question tests Network Design — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Step 1: Create the transit gateway. Step 2: Create transit gateway attachments to VPCs. Step 3: Associate attachments with a transit gateway route table. Step 4: Update VPC route tables to point to the transit gateway. Step 5: Test connectivity. — First create the transit gateway, then create attachments, associate them with a route table, update VPC routes, and test connectivity.
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.
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Last reviewed: Jun 11, 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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