Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company is preparing for a PCI DSS compliance audit. The security team needs to ensure that all AWS API calls are logged and that the logs are continuously analyzed for suspicious or unauthorized activity. The team wants a managed security service that uses machine learning to identify threats, generates findings for review, and can trigger automated remediation through AWS Lambda. Which AWS service should the team use?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
AWS CloudTrail
AWS CloudTrail logs all API calls made to the AWS environment, which is necessary for audit trails, but it does not analyze logs for threats or use machine learning to detect suspicious activity. It is a logging service, not a threat detection service.
B
Best answer
Amazon GuardDuty
Amazon GuardDuty is a managed threat detection service that continuously monitors for malicious or unauthorized behavior using machine learning and integrated threat intelligence. It analyzes CloudTrail logs, VPC Flow Logs, and DNS logs, generates findings, and can trigger automated responses through AWS Lambda, meeting all the requirements.
C
Distractor review
AWS Config
AWS Config is a service that evaluates your resource configurations against desired policies and tracks changes over time. It does not analyze API call logs for suspicious activity and does not use machine learning for threat detection.
D
Distractor review
Amazon Inspector
Amazon Inspector is a vulnerability assessment service that scans EC2 instances and container images for software vulnerabilities and network exposure. It does not analyze AWS API calls or monitor for unauthorized activity in CloudTrail logs.
Common exam trap
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.
Technical deep dive
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.
Related practice questions
Related CLF-C02 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
AWS shared responsibility model practice questions
Practise CLF-C02 questions linked to AWS shared responsibility model.
AWS Cloud Practitioner cloud concepts practice questions
Practise CLF-C02 questions linked to AWS Cloud Practitioner cloud concepts.
AWS IAM practice questions
Practise CLF-C02 questions linked to AWS IAM.
AWS pricing practice questions
Practise CLF-C02 questions linked to AWS pricing.
AWS support plans practice questions
Practise CLF-C02 questions linked to AWS support plans.
AWS S3 practice questions
Practise CLF-C02 questions linked to AWS S3.
AWS EC2 practice questions
Practise CLF-C02 questions linked to AWS EC2.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A developer needs to launch a test server for a new application prototype. The developer logs into the AWS Management Console, selects an Amazon EC2 instance type, configures the security group, and starts the instance. The instance is running within two minutes, and the developer did not need to submit a formal request to the company's IT procurement team or wait for approval from a cloud administrator. Which essential characteristic of cloud computing does this scenario best demonstrate?
Question 2
A solutions architect is planning a new web application on AWS. The workload will include 3 Amazon EC2 instances (t3.medium) running 24/7, an Application Load Balancer, and an Amazon RDS for MySQL db.t3.small database. The architect needs to estimate the monthly cost for the first year, considering different purchasing options (On-Demand, 1-year All Upfront Reserved Instance, and Compute Savings Plan). Which AWS tool should the architect use to create this estimate?
Question 3
A company's development team frequently needs temporary test environments. A developer can log into the AWS Management Console, select an Amazon EC2 instance type, configure storage, and launch the instance within minutes without any interaction with the IT infrastructure team. This capability is an example of which essential characteristic of cloud computing?
Question 4
A company's finance team needs to analyze AWS spending in detail. They require a report that includes hourly cost data for each AWS service, each individual resource (e.g., a specific EC2 instance), and any cost allocation tags applied. The team plans to export this data to an Amazon S3 bucket and then import it into a custom business intelligence (BI) analytics dashboard. Which AWS tool should the finance team use to generate this level of detailed cost data?
Question 5
A company uses AWS for its development environment. The finance team wants to set a monthly budget of $10,000. They want to receive an email notification when the actual costs reach 80% of the budget ($8,000) and again when costs exceed the budget. The team needs a managed AWS service that can automatically send these alerts without requiring custom code or third-party tools. Which AWS service should the team use?
Question 6
A company uses AWS Organizations to manage multiple accounts. The security team needs to enforce a policy that restricts SSH access (port 22) from the internet (0.0.0.0/0) in all VPCs across all accounts. The team wants to centrally define the allowed rules and automatically apply them to newly created VPCs and security groups, while also automatically remediating any existing non-compliant security groups. Which AWS service should the team use?
FAQ
Questions learners often ask
What does this CLF-C02 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Amazon GuardDuty — Amazon GuardDuty is a threat detection service that continuously monitors for malicious activity and unauthorized behavior. It uses machine learning to analyze AWS CloudTrail logs, VPC Flow Logs, and DNS logs. GuardDuty generates security findings that can be reviewed in the console or forwarded to Amazon EventBridge for automated remediation via AWS Lambda. AWS CloudTrail only records API calls but does not analyze them for threats. AWS Config tracks resource configuration changes and evaluates compliance. Amazon Inspector scans workloads for software vulnerabilities and unintended network exposure. Therefore, GuardDuty is the correct choice for continuous threat detection and automated response.
What should I do if I get this CLF-C02 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
Discussion
Loading comments…
Sign in to join the discussion.