Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company runs several applications in a single AWS account. Each application belongs to a different project (Project Alpha, Project Beta, Project Gamma). The company has already applied tags with the key "Project" and the corresponding project name to all AWS resources used by each project. The finance team wants to use AWS Cost Explorer to view and filter monthly costs by project. However, after tagging all resources, the "Project" tag does not appear as a filter option in Cost Explorer. What must the finance team do to make the "Project" tag available for cost filtering in Cost Explorer?
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
Create a new AWS Budget with a cost filter for the "Project" tag.
Incorrect. Creating a budget with a tag filter requires the tag to already be activated for cost allocation. The budget itself does not activate the tag, and budgets are used for setting spending limits and alerts, not for enabling tags as filters.
B
Best answer
Activate the "Project" cost allocation tag in the Billing and Cost Management console.
Correct. Activating the cost allocation tag in the Billing and Cost Management console makes the tag available for filtering in Cost Explorer and for inclusion in cost reports. This is the required step after applying tags to resources.
C
Distractor review
Enable the AWS Cost and Usage Reports for the account.
Incorrect. While Cost and Usage Reports (CUR) can include tag information, the tags must still be activated as cost allocation tags before they appear in the reports or in Cost Explorer. Enabling CUR alone does not make the tag filterable in Cost Explorer.
D
Distractor review
Create a custom cost category with a rule that uses the "Project" tag.
Incorrect. Cost categories are a feature that allow you to group costs based on rules, but they do not replace the need to activate cost allocation tags. The tag must be activated first before it can be used in cost categories or other cost management tools.
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 "Project" cost allocation tag in the Billing and Cost Management console. — Cost allocation tags must be explicitly activated in the Billing and Cost Management console after they are applied to resources. Only after activation do tags become available as filter options in AWS Cost Explorer and appear in cost reports. Simply tagging resources is not sufficient; activation is a separate step.
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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