Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company uses AWS for multiple projects. Each project's resources have been tagged with 'Project' and 'Team' tags. The finance team wants to view a cost breakdown in AWS Cost Explorer using these tags. The tags are already applied to existing resources. However, when the finance team opens Cost Explorer, the tags are not available for filtering. What must the finance team do to see costs by these tags?
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
Enable detailed billing reports in the Billing console.
Enabling detailed billing reports (AWS Cost and Usage Report) provides granular cost data in CSV/Parquet format, but it does not make existing tags visible in Cost Explorer. Tags must be activated separately.
B
Best answer
Activate the cost allocation tags in the Billing and Cost Management console.
Correct. Cost allocation tags must be activated in the Billing console before they appear in Cost Explorer. Once activated, AWS includes the tag keys and values in cost data, and after up to 24 hours, the tags become available for filtering in Cost Explorer.
C
Distractor review
Create a budget in AWS Budgets and set tag-based filters.
AWS Budgets can use tags to filter costs, but the tags must first be activated as cost allocation tags. Creating a budget does not activate tags; the prerequisite step is activation.
D
Distractor review
Use AWS Organizations to create separate accounts per project.
While using separate accounts provides natural cost separation, it is not required to make existing tags visible in Cost Explorer. This approach would add overhead and does not address the immediate need to view costs by the already-applied tags.
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: Activate the cost allocation tags in the Billing and Cost Management console. — For cost allocation tags to appear in AWS Cost Explorer, the tags must first be activated in the AWS Billing and Cost Management console. Even if tags are applied to resources, they are not automatically visible for cost reporting. Activating a cost allocation tag tells AWS to include that tag in your cost and usage data. After activation, it can take up to 24 hours for the tags to appear in Cost Explorer. Option B correctly identifies this required step. Option A is incorrect because enabling detailed billing reports (such as AWS Cost and Usage Report) provides a different level of detail but does not make tags available in Cost Explorer. Option C is incorrect because AWS Budgets can use tag-based filters, but budgets do not enable tag visibility; tags must be activated first. Option D is incorrect because creating separate accounts is a different approach to cost tracking, not a solution for using existing tags in Cost Explorer.
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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