The answer is to establish Transit Gateway peering attachments for inter-Region connectivity and route traffic through a central inspection VPC in one Region using Transit Gateway route tables. This combination works because Transit Gateway peering enables direct, private connectivity between Transit Gateways across AWS Regions, while centralized inspection is achieved by forcing all inter-Region traffic through a shared services VPC that hosts network appliances like firewalls. On the AWS Certified Advanced Networking Specialty ANS-C01 exam, this scenario tests your understanding of how to scale inter-Region connectivity without VPC peering’s limitations, and the common trap is selecting VPN attachments or cross-Region VPC peering, which either add unnecessary complexity or fail to scale. Remember the key: peering for the pipe, route tables for the inspection—think “pipe and filter” to keep inter-Region traffic inspected in one place.
ANS-C01 Network Design Practice Question
This ANS-C01 practice question tests your understanding of network design. 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 wants to connect multiple VPCs in different AWS Regions using AWS Transit Gateway. The company requires full mesh connectivity with centralized inspection of inter-Region traffic. Which TWO actions should the company take? (Choose TWO.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create Transit Gateway peering attachments between the Transit Gateways in each Region.
Options B and D are correct. B: Transit Gateway peering attachments allow inter-Region connectivity. D: Centralized inspection is achieved by routing traffic through a shared services VPC with a network appliance. Option A is incorrect because VPN attachments are not needed for inter-Region connectivity. Option C is incorrect because VPC peering does not scale. Option E is incorrect because cross-Region peering is supported.
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 Transit Gateway peering attachments between the Transit Gateways in each Region.
Read the scenario before looking for a memorised answer.
✗
Create VPN attachments between each Transit Gateway and the inspection VPC.
Why it's wrong here
VPN attachments are not required; peering attachments are used.
✗
Use VPC peering connections between VPCs in different Regions.
Why it's wrong here
VPC peering does not scale for many VPCs.
✓
Route traffic through a central inspection VPC in one Region using Transit Gateway route tables.
Why this is correct
Central inspection can be done via route tables.
Related concept
Read the scenario before looking for a memorised answer.
✗
Disable cross-Region peering on the Transit Gateway.
Why it's wrong here
Cross-Region peering is needed.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
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 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: Create Transit Gateway peering attachments between the Transit Gateways in each Region. — Options B and D are correct. B: Transit Gateway peering attachments allow inter-Region connectivity. D: Centralized inspection is achieved by routing traffic through a shared services VPC with a network appliance. Option A is incorrect because VPN attachments are not needed for inter-Region connectivity. Option C is incorrect because VPC peering does not scale. Option E is incorrect because cross-Region peering is supported.
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 →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.