The answer is AWS Firewall Manager, the correct choice for centralized security group management across a multi-account AWS environment. This service integrates with AWS Organizations to allow you to centrally define and enforce VPC security group rules, AWS WAF rules, and Shield Advanced protections from a single administrative account, automatically applying them to new and existing accounts. On the AWS Certified Advanced Networking Specialty ANS-C01 exam, this question tests your understanding of governance versus deployment tools—a common trap is confusing Firewall Manager with AWS Config (which audits but does not enforce) or CloudFormation StackSets (which deploys resources but lacks ongoing policy enforcement). Remember that Firewall Manager is the only service that provides continuous, centralized enforcement of security group rules across an entire organization, making it the go-to for compliance-driven network security architectures. A useful memory tip: think of Firewall Manager as the “police officer” that enforces the rules, while Config is the “security camera” that records violations.
ANS-C01 Network Security, Compliance and Governance Practice Question
This ANS-C01 practice question tests your understanding of network security, compliance and governance. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 designing a network security architecture for a multi-account AWS environment using AWS Organizations. They need to centrally manage and enforce VPC security group rules across all accounts. Which service should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
AWS Firewall Manager
Option C is correct because AWS Firewall Manager allows centralized management of security groups and AWS WAF rules across accounts in AWS Organizations. Option A is wrong because AWS Config is for compliance and configuration tracking, not enforcement. Option B is wrong because AWS CloudFormation StackSets deploy resources but do not centrally enforce security group rules. Option D is wrong because AWS Service Catalog is for provisioning approved resources, not managing security 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.
✗
AWS CloudFormation StackSets
Why it's wrong here
StackSets deploy templates across accounts but lack centralized enforcement for security groups.
✗
AWS Config
Why it's wrong here
AWS Config evaluates resource configurations but does not enforce rules.
✓
AWS Firewall Manager
Why this is correct
Firewall Manager provides centralized management and enforcement of security groups and firewall rules across accounts.
Related concept
Read the scenario before looking for a memorised answer.
✗
AWS Service Catalog
Why it's wrong here
Service Catalog allows IT teams to create and manage a catalog of approved products, not security group enforcement.
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
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
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 Security, Compliance and Governance — This question tests Network Security, Compliance and Governance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Firewall Manager — Option C is correct because AWS Firewall Manager allows centralized management of security groups and AWS WAF rules across accounts in AWS Organizations. Option A is wrong because AWS Config is for compliance and configuration tracking, not enforcement. Option B is wrong because AWS CloudFormation StackSets deploy resources but do not centrally enforce security group rules. Option D is wrong because AWS Service Catalog is for provisioning approved resources, not managing security groups.
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.
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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
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