ANS-C01 Network Security, Compliance and Governance Practice Question
A security engineer needs to centrally manage and enforce rules for network traffic between VPCs in a large AWS environment. Which AWS service provides this capability?
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
✓
AWS Network Firewall
AWS Network Firewall provides centralized management of firewall rules across multiple VPCs, allowing security engineers to enforce consistent network traffic controls. Option A (VPC peering) is just a connectivity mechanism, not a filtering service. Option B (Security groups) operate at the ENI level and are not centrally managed across VPCs. Option C (Network ACLs) are stateless and applied per subnet, not centrally. Therefore, D is correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
VPC peering
Why it's wrong here
VPC peering only connects VPCs, no filtering.
- ✗
Security groups
Why it's wrong here
Security groups are per instance/ENI, not central.
- ✗
Network ACLs
Why it's wrong here
NACLs are per subnet, not central.
- ✓
AWS Network Firewall
Why this is correct
AWS Network Firewall provides centralized firewall management across VPCs.
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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.