This ANS-C01 practice question tests your understanding of network security, compliance and governance. 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 wants to centrally manage and enforce security rules for all VPCs in a multi-account environment. Which AWS service should be used?
Amazon GuardDuty
Why wrong: Threat detection service.
AWS Shield
Why wrong: Provides DDoS protection.
AWS Firewall Manager
Centrally manages firewall rules across accounts and VPCs.
AWS WAF
Why wrong: Focuses on web application layer 7.
Answer choices
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
AWS Firewall Manager is the correct choice because it provides centralized management of firewall rules across multiple accounts and VPCs in an AWS Organization. It allows you to enforce a common set of security policies, such as AWS WAF rules, AWS Shield Advanced protections, and VPC security group rules, ensuring consistent governance across all VPCs in the multi-account environment.
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.
Amazon GuardDuty
Why it's wrong here
Threat detection service.
AWS Shield
Why it's wrong here
Provides DDoS protection.
AWS Firewall Manager
Why this is correct
Centrally manages firewall rules across accounts and VPCs.
Related concept
Read the scenario before looking for a memorised answer.
AWS WAF
Why it's wrong here
Focuses on web application layer 7.
Common exam traps
AWS often tests the distinction between a service that provides centralized policy management (Firewall Manager) versus a service that provides a specific security function (like WAF or Shield), leading candidates to choose the more familiar service without recognizing the need for multi-account governance.
Detailed technical explanation
AWS Firewall Manager works by integrating with AWS Organizations to apply policies across member accounts. It supports policy types such as AWS WAF rules, AWS Shield Advanced protections, Amazon VPC security groups, and AWS Network Firewall rules. A key subtlety is that Firewall Manager can automatically remediate non-compliant resources by applying the defined policy, but it requires that the organization have all features enabled in AWS Organizations and that the accounts are part of the organization.
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
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FAQ
Network Security, Compliance and Governance — This question tests Network Security, Compliance and Governance — Read the scenario before looking for a memorised answer..
The correct answer is: AWS Firewall Manager — AWS Firewall Manager is the correct choice because it provides centralized management of firewall rules across multiple accounts and VPCs in an AWS Organization. It allows you to enforce a common set of security policies, such as AWS WAF rules, AWS Shield Advanced protections, and VPC security group rules, ensuring consistent governance across all VPCs in the multi-account environment.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 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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