- A
Amazon Inspector
Why wrong: Incorrect. Amazon Inspector is a vulnerability assessment service for EC2 instances, not for network ACL configuration evaluation.
- B
Amazon GuardDuty
Why wrong: Incorrect. Amazon GuardDuty is a threat detection service that analyzes VPC flow logs, DNS logs, and CloudTrail events for malicious activity, not for compliance checks on NACLs.
- C
AWS Config
Correct. AWS Config can evaluate NACL rules using custom or managed rules to detect non-compliant inbound SSH from 0.0.0.0/0 and trigger alerts.
- D
AWS CloudTrail
Why wrong: Incorrect. AWS CloudTrail records API calls for auditing but does not evaluate resource configurations against compliance rules.
Question 1,194 of 1,748
Detect Non-Compliant Network ACLs with AWS Config | AWS Security Specialty
This SCS-C02 practice question tests your understanding of management and security 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. A key principle to apply: aWS Config. 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 has an AWS account with a single VPC and multiple subnets. The security team wants to ensure that no network ACL (NACL) allows inbound SSH (port 22) from 0.0.0.0/0. Which AWS service can be used to detect and alert on such non-compliant NACLs?
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 Config
AWS Config can evaluate network ACL (NACL) rules using managed rules or custom Lambda-backed rules to detect non-compliant inbound SSH from 0.0.0.0/0. Option A (Amazon Inspector) is a vulnerability assessment service for EC2, not for NACL evaluation. Option B (Amazon GuardDuty) is a threat detection service that monitors for malicious activity, not configuration compliance. Option D (AWS CloudTrail) logs API calls but does not evaluate resource configurations against rules. Therefore, AWS Config (Option C) is the correct service for this compliance check.
Key principle: AWS Config
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon Inspector
Why it's wrong here
Incorrect. Amazon Inspector is a vulnerability assessment service for EC2 instances, not for network ACL configuration evaluation.
- ✗
Amazon GuardDuty
Why it's wrong here
Incorrect. Amazon GuardDuty is a threat detection service that analyzes VPC flow logs, DNS logs, and CloudTrail events for malicious activity, not for compliance checks on NACLs.
- ✓
AWS Config
Why this is correct
Correct. AWS Config can evaluate NACL rules using custom or managed rules to detect non-compliant inbound SSH from 0.0.0.0/0 and trigger alerts.
Related concept
AWS Config
- ✗
AWS CloudTrail
Why it's wrong here
Incorrect. AWS CloudTrail records API calls for auditing but does not evaluate resource configurations against compliance rules.
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
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- AWS Config
- Network ACL (NACL) Compliance
TExam Day Tips
- 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
AWS Config
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.
Visual reference
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
Got this wrong? Here's your next step.
Review aWS Config, then practise related SCS-C02 questions on the same topic to reinforce the concept.
- →
Management and Security Governance — study guide chapter
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Management and Security Governance practice questions
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FAQ
Questions learners often ask
What does this SCS-C02 question test?
Management and Security Governance — This question tests Management and Security Governance — AWS Config.
What is the correct answer to this question?
The correct answer is: AWS Config — AWS Config can evaluate network ACL (NACL) rules using managed rules or custom Lambda-backed rules to detect non-compliant inbound SSH from 0.0.0.0/0. Option A (Amazon Inspector) is a vulnerability assessment service for EC2, not for NACL evaluation. Option B (Amazon GuardDuty) is a threat detection service that monitors for malicious activity, not configuration compliance. Option D (AWS CloudTrail) logs API calls but does not evaluate resource configurations against rules. Therefore, AWS Config (Option C) is the correct service for this compliance check.
What should I do if I get this SCS-C02 question wrong?
Review aWS Config, then practise related SCS-C02 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
AWS Config
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Last reviewed: Jun 20, 2026
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.
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