- A
AWS Config
AWS Config is designed specifically for resource inventory, configuration history, and compliance evaluation against rules. It tracks changes and shows compliance status, perfectly matching the requirements.
- B
AWS CloudTrail
Why wrong: AWS CloudTrail records API activity (who made what call, when, from where) but does not evaluate the actual configuration of resources against policies. It is not designed for compliance rule evaluation or a compliance dashboard.
- C
Amazon GuardDuty
Why wrong: Amazon GuardDuty is a threat detection service that uses machine learning to identify malicious or unauthorized behavior, such as unusual API calls or compromised instances. It does not evaluate resource configurations for compliance with internal policies.
- D
Amazon Inspector
Why wrong: Amazon Inspector is a vulnerability management service that scans workloads for software vulnerabilities and unintended network exposure. It does not evaluate resource configurations against custom compliance rules or provide a compliance dashboard for resources like S3 bucket policies or security group rules.
Quick Answer
The answer is AWS Config. This service is the correct choice because it provides continuous compliance monitoring and configuration history for AWS resources, allowing you to define rules that automatically evaluate S3 bucket policies and EC2 security groups against your internal security policies, then display a compliance dashboard with pass/fail status. On the AWS Certified Cloud Practitioner CLF-C02 exam, this question tests your understanding of which service handles resource auditing and historical change tracking, often appearing as a scenario where you must distinguish AWS Config from services like AWS CloudTrail (which focuses on API activity logging) or AWS Trusted Advisor (which offers best-practice checks but not granular configuration history). A common trap is confusing Config’s resource-level compliance with CloudTrail’s user-level activity logs. Remember the memory tip: “Config checks the config” — it evaluates the state and history of your resource configurations, not who made the change.
CLF-C02 Security and Compliance Practice Question
This CLF-C02 practice question tests your understanding of security and compliance. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 has internal security policies that require all Amazon S3 buckets to be private (not publicly accessible) and all Amazon EC2 security groups to restrict inbound SSH traffic to a specific IP range. The security team needs to continuously monitor all AWS resources across their account to detect any resource that violates these policies. They also need a historical record of configuration changes and a compliance dashboard that shows overall pass/fail status. Which AWS service should the security team use to meet these requirements?
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 is the correct service because it provides continuous monitoring, compliance auditing, and historical recording of configuration changes for AWS resources. It allows you to define rules (e.g., 's3-bucket-public-read-prohibited' and 'restricted-ssh') that automatically evaluate your S3 bucket policies and EC2 security group rules against your security policies, and it offers a compliance dashboard showing pass/fail status for each resource. AWS Config also maintains a configuration history that can be used for auditing and troubleshooting.
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 Config
Why this is correct
AWS Config is designed specifically for resource inventory, configuration history, and compliance evaluation against rules. It tracks changes and shows compliance status, perfectly matching the requirements.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS CloudTrail
Why it's wrong here
AWS CloudTrail records API activity (who made what call, when, from where) but does not evaluate the actual configuration of resources against policies. It is not designed for compliance rule evaluation or a compliance dashboard.
- ✗
Amazon GuardDuty
Why it's wrong here
Amazon GuardDuty is a threat detection service that uses machine learning to identify malicious or unauthorized behavior, such as unusual API calls or compromised instances. It does not evaluate resource configurations for compliance with internal policies.
- ✗
Amazon Inspector
Why it's wrong here
Amazon Inspector is a vulnerability management service that scans workloads for software vulnerabilities and unintended network exposure. It does not evaluate resource configurations against custom compliance rules or provide a compliance dashboard for resources like S3 bucket policies or security group rules.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS CloudTrail (which logs API calls) with AWS Config (which tracks resource configuration state and compliance), leading them to choose CloudTrail because they think 'historical record of changes' refers to API logs rather than configuration item snapshots.
Detailed technical explanation
How to think about this question
AWS Config uses a managed rule engine that evaluates resources based on AWS Lambda functions or predefined rules, and it records configuration items (CIs) in a configuration history file stored in an S3 bucket. The compliance dashboard aggregates results from all rules, showing compliant and non-compliant resources, and can trigger remediation actions via AWS Systems Manager Automation. A subtle behavior is that AWS Config does not prevent non-compliant changes—it only detects and reports them after the change occurs, so it is often paired with AWS Organizations SCPs or IAM policies for proactive enforcement.
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.
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
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Security and Compliance — study guide chapter
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Security and Compliance — This question tests Security and Compliance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Config — AWS Config is the correct service because it provides continuous monitoring, compliance auditing, and historical recording of configuration changes for AWS resources. It allows you to define rules (e.g., 's3-bucket-public-read-prohibited' and 'restricted-ssh') that automatically evaluate your S3 bucket policies and EC2 security group rules against your security policies, and it offers a compliance dashboard showing pass/fail status for each resource. AWS Config also maintains a configuration history that can be used for auditing and troubleshooting.
What should I do if I get this CLF-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more ways this is tested on CLF-C02
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company has a compliance policy requiring that all Amazon EC2 instances in its production environment must have the tag "Environment=Production" and must be associated with a security group named "Prod-SG". The company wants to continuously monitor its AWS account and automatically detect any EC2 instances that do not meet these requirements. The IT team needs a service that can evaluate the configuration of resources against these rules and send notifications when a non-compliant resource is detected. Which AWS service should the company use?
medium- A.AWS Trusted Advisor
- B.Amazon GuardDuty
- ✓ C.AWS Config
- D.Amazon Inspector
Why C: AWS Config is the correct service because it provides continuous monitoring and evaluation of AWS resource configurations against desired rules. You can create a custom AWS Config rule to check that all EC2 instances have the tag 'Environment=Production' and are associated with the security group 'Prod-SG'. When a resource becomes non-compliant, AWS Config can trigger an Amazon SNS notification to alert the IT team.
Last reviewed: Jun 11, 2026
This CLF-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 CLF-C02 exam.
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