ANS-C01 Network Security, Compliance and Governance Practice Question
A security engineer needs to ensure that all traffic between two VPCs in the same region is encrypted in transit. The VPCs are connected via a VPC peering connection. What should the engineer do to meet this requirement?
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
✓
No additional configuration needed; VPC peering traffic is automatically encrypted.
VPC peering traffic within the same region is automatically encrypted using AWS's physical network encryption. No additional configuration is required. Option A (VPN) adds unnecessary complexity and cost since encryption already exists. Option B (NACLs) does not encrypt traffic. Option D (Transit Gateway) uses the same underlying encryption, so it does not add extra encryption beyond what VPC peering provides.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Set up a VPN connection between the two VPCs and route traffic through it.
Why it's wrong here
Unnecessary as VPC peering is already encrypted.
- ✗
Configure network ACLs to enforce encryption.
Why it's wrong here
NACLs do not provide encryption.
- ✓
No additional configuration needed; VPC peering traffic is automatically encrypted.
Why this is correct
AWS encrypts inter-region VPC peering traffic by default.
- ✗
Use AWS Transit Gateway to connect the VPCs and enable encryption.
Why it's wrong here
Transit Gateway does not inherently encrypt traffic.
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JA
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.