The answer is AWS Network Firewall and AWS Firewall Manager. These two services work together to provide central network security management across accounts: AWS Network Firewall deploys stateful, network-level firewall rules within individual VPCs, while AWS Firewall Manager centrally enforces those firewall policies across all accounts in an AWS Organization. On the AWS Certified Security Specialty SCS-C02 exam, this pairing tests your understanding of the separation between policy orchestration and rule enforcement—a common trap is confusing AWS WAF (which operates at Layer 7 for web traffic) with Network Firewall (which operates at Layers 3-4 for all IP traffic). Remember that Firewall Manager is the administrative control plane, and Network Firewall is the enforcement point; together they solve the challenge of multi-account network security without requiring manual per-VPC configuration. A useful memory tip: think of Firewall Manager as the “manager” who writes the playbook, and Network Firewall as the “player” who executes it on the field.
SCS-C02 Infrastructure Security Practice Question
This SCS-C02 practice question tests your understanding of infrastructure security. 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 security engineer is designing a multi-account strategy using AWS Organizations. The engineer needs to centrally manage network security across all accounts. Which TWO AWS services are most appropriate for this task?
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 B (AWS Network Firewall) is correct for centrally managing firewall rules. Option D (AWS Firewall Manager) is correct for centrally managing firewall policies across accounts. Option A (Amazon GuardDuty) is threat detection. Option C (AWS WAF) is web application firewall but not for network-level security. Option E (VPC Peering) is a connectivity option, not a management service.
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 Firewall Manager
Why this is correct
Firewall Manager provides centralized management of firewall rules across accounts and resources.
Related concept
Read the scenario before looking for a memorised answer.
✓
AWS Network Firewall
Why this is correct
Network Firewall can be centrally managed via Firewall Manager to enforce network security rules.
Related concept
Read the scenario before looking for a memorised answer.
✗
VPC Peering
Why it's wrong here
VPC Peering is a network connectivity feature, not a security management service.
✗
AWS WAF
Why it's wrong here
WAF is for web application layer, not network layer security.
✗
Amazon GuardDuty
Why it's wrong here
GuardDuty is a threat detection service, not a network security management service.
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 SCS-C02 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.
Infrastructure Security — This question tests Infrastructure Security — 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 B (AWS Network Firewall) is correct for centrally managing firewall rules. Option D (AWS Firewall Manager) is correct for centrally managing firewall policies across accounts. Option A (Amazon GuardDuty) is threat detection. Option C (AWS WAF) is web application firewall but not for network-level security. Option E (VPC Peering) is a connectivity option, not a management service.
What should I do if I get this SCS-C02 question wrong?
Identify which SCS-C02 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 SCS-C02 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 SCS-C02 exam.
Question Discussion
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