This ANS-C01 practice question tests your understanding of network management and operations. 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 using AWS Transit Gateway with multiple VPC attachments. They need to ensure that traffic between two specific VPCs is encrypted in transit. The VPCs are in the same AWS region. What is the SIMPLEST solution?
Enable encryption on the Transit Gateway route tables
Why wrong: Transit Gateway does not offer encryption.
Use AWS PrivateLink to connect the VPCs
Why wrong: PrivateLink is for service access, not VPC-to-VPC.
Create a VPN attachment on the Transit Gateway and route traffic through it
VPN provides encryption.
Use VPC peering instead of Transit Gateway and enable encryption
Why wrong: VPC peering does not support encryption.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Create a VPN attachment on the Transit Gateway and route traffic through it
Option B is correct because an AWS Transit Gateway supports transit gateway peering attachments with VPN encryption for traffic between VPCs. Option A is incorrect because the Transit Gateway itself does not encrypt traffic. Option C is incorrect because VPC peering does not provide encryption by default. Option D is incorrect because AWS PrivateLink is for services, not VPC-to-VPC encryption.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Enable encryption on the Transit Gateway route tables
Why it's wrong here
Transit Gateway does not offer encryption.
Use AWS PrivateLink to connect the VPCs
Why it's wrong here
PrivateLink is for service access, not VPC-to-VPC.
Create a VPN attachment on the Transit Gateway and route traffic through it
Why this is correct
VPN provides encryption.
Related concept
Read the scenario before looking for a memorised answer.
Use VPC peering instead of Transit Gateway and enable encryption
Why it's wrong here
VPC peering does not support encryption.
Common exam traps
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
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
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
Network Management and Operations — This question tests Network Management and Operations — Read the scenario before looking for a memorised answer..
The correct answer is: Create a VPN attachment on the Transit Gateway and route traffic through it — Option B is correct because an AWS Transit Gateway supports transit gateway peering attachments with VPN encryption for traffic between VPCs. Option A is incorrect because the Transit Gateway itself does not encrypt traffic. Option C is incorrect because VPC peering does not provide encryption by default. Option D is incorrect because AWS PrivateLink is for services, not VPC-to-VPC encryption.
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.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 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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