Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company uses AWS Organizations to manage over 50 AWS accounts. The security team has identified a high-priority requirement to prevent any security group rule in any account from allowing inbound RDP (port 3389) access from the internet (0.0.0.0/0). If a rule is created that violates this policy, the team wants it to be automatically removed. The team needs a centralized service that can enforce this policy across all current and new accounts without requiring manual setup in each account. 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 Config
AWS Config can detect and evaluate security group rules against compliance rules, but it cannot automatically remediate non-compliant rules without additional custom automation (such as AWS Lambda or Systems Manager Automation). The question requires automatic removal without manual setup, so Config alone is insufficient.
B
Best answer
AWS Firewall Manager
AWS Firewall Manager allows organizations to centrally configure and manage security group rules and AWS WAF rules across all accounts. It can apply a common security group baseline and automatically remove non-compliant rules (e.g., inbound RDP from 0.0.0.0/0), enforcing the policy across current and new accounts without manual intervention.
C
Distractor review
AWS IAM Access Analyzer
AWS IAM Access Analyzer helps identify resources that are shared with an external entity by analyzing resource-based policies (like S3 bucket policies). It does not address security group rules or automatic remediation, so it is not relevant to this requirement.
D
Distractor review
AWS Security Hub
AWS Security Hub aggregates security findings from multiple AWS services, including AWS Config, and provides a centralized view of compliance status. However, it does not enforce policies or automatically remediate non-compliant resources. It only reports on findings.
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.
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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: AWS Firewall Manager — AWS Firewall Manager is the correct service because it provides centralized administration of security group rules across accounts in AWS Organizations. It can create security group policies that automatically apply a baseline set of rules and automatically remediate non-compliant rules (such as those allowing inbound RDP from the internet). The other services either lack automatic remediation or are designed for different purposes.
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.
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