- A
Use Transit Gateway Network Manager to create a network segmentation design.
Network Manager helps visualize and manage segmentation.
- B
Create separate Transit Gateway route tables for different groups of VPCs and associate the VPC attachments accordingly.
Route tables in Transit Gateway control traffic flow between attachments.
- C
Configure network ACLs on the VPC subnets to allow or deny traffic.
Why wrong: NACLs are stateless and control traffic at the subnet level but are not designed for Transit Gateway segmentation.
- D
Use security groups on the Transit Gateway attachments.
Why wrong: Security groups are not supported on Transit Gateway attachments.
- E
Implement VPC endpoints for inter-VPC communication.
Why wrong: VPC endpoints are for accessing AWS services privately, not for VPC-to-VPC traffic.
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 deploying an application across multiple VPCs using AWS Transit Gateway. They need to ensure that only specific VPCs can communicate with each other. Which TWO methods can be used to isolate traffic?
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
Use Transit Gateway Network Manager to create a network segmentation design.
Option A is correct because Transit Gateway Network Manager provides a centralized view and allows you to create network segmentation designs by grouping resources and defining routing policies, which helps isolate traffic between specific VPCs. Option B is correct because by creating separate Transit Gateway route tables for different groups of VPCs and associating VPC attachments accordingly, you control which VPCs can route traffic to each other, effectively isolating traffic between groups.
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.
- ✓
Use Transit Gateway Network Manager to create a network segmentation design.
Why this is correct
Network Manager helps visualize and manage segmentation.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Create separate Transit Gateway route tables for different groups of VPCs and associate the VPC attachments accordingly.
Why this is correct
Route tables in Transit Gateway control traffic flow between attachments.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Configure network ACLs on the VPC subnets to allow or deny traffic.
Why it's wrong here
NACLs are stateless and control traffic at the subnet level but are not designed for Transit Gateway segmentation.
- ✗
Use security groups on the Transit Gateway attachments.
Why it's wrong here
Security groups are not supported on Transit Gateway attachments.
- ✗
Implement VPC endpoints for inter-VPC communication.
Why it's wrong here
VPC endpoints are for accessing AWS services privately, not for VPC-to-VPC traffic.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse network ACLs or security groups as mechanisms for inter-VPC traffic control, but these operate within a VPC and cannot be applied to Transit Gateway attachments, which require route table segmentation for isolation.
Detailed technical explanation
How to think about this question
Transit Gateway route tables support route propagation and static routes, allowing you to create isolated routing domains (e.g., production vs. development) by associating specific VPC attachments with different route tables. Under the hood, the Transit Gateway uses a hub-and-spoke model where each attachment is associated with exactly one route table, and route propagation can be selectively enabled to control which routes are learned. In a real-world scenario, you might create separate route tables for finance and engineering VPCs, ensuring that only attachments in the same route table can communicate, while using blackhole routes to block unintended traffic.
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 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Network Implementation — study guide chapter
Learn the concepts, then practise the questions
- →
Network Implementation practice questions
Targeted practice on this topic area only
- →
All ANS-C01 questions
1,705 questions across all exam domains
- →
AWS Certified Advanced Networking Specialty ANS-C01 study guide
Full concept coverage aligned to exam objectives
- →
ANS-C01 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related ANS-C01 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Network Management and Operations practice questions
Practise ANS-C01 questions linked to Network Management and Operations.
Network Security, Compliance and Governance practice questions
Practise ANS-C01 questions linked to Network Security, Compliance and Governance.
Network Design practice questions
Practise ANS-C01 questions linked to Network Design.
Network Implementation practice questions
Practise ANS-C01 questions linked to Network Implementation.
ANS-C01 fundamentals practice questions
Practise ANS-C01 questions linked to ANS-C01 fundamentals.
ANS-C01 scenario practice questions
Practise ANS-C01 questions linked to ANS-C01 scenario.
ANS-C01 troubleshooting practice questions
Practise ANS-C01 questions linked to ANS-C01 troubleshooting.
Practice this exam
Start a free ANS-C01 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this ANS-C01 question test?
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: Use Transit Gateway Network Manager to create a network segmentation design. — Option A is correct because Transit Gateway Network Manager provides a centralized view and allows you to create network segmentation designs by grouping resources and defining routing policies, which helps isolate traffic between specific VPCs. Option B is correct because by creating separate Transit Gateway route tables for different groups of VPCs and associating VPC attachments accordingly, you control which VPCs can route traffic to each other, effectively isolating traffic between groups.
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.
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 →
Keep practising
More ANS-C01 practice questions
- A financial services company has a VPC with a public subnet and a private subnet. EC2 instances in the private subnet ne…
- A company is designing a network security architecture for a multi-account environment using AWS Transit Gateway. The se…
- A company is using AWS Direct Connect to connect its on-premises network to AWS. The company wants to encrypt all traffi…
- A company uses AWS Transit Gateway to connect multiple VPCs and on-premises networks via AWS Site-to-Site VPN. The secur…
- A company runs a web application on EC2 instances behind an Application Load Balancer (ALB). The application must be acc…
- A global e-commerce company uses a hub-and-spoke network topology with a transit VPC in us-east-1. Each spoke VPC has an…
Last reviewed: Jul 4, 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.
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.