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ANS-C01 Network Design Practice Question
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.
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.
- ✗
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.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.