Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company is planning to migrate its on-premises workloads to AWS. The cloud architect needs to create a detailed estimate of the monthly AWS bill based on specific configuration details, such as the number of Amazon EC2 instances with particular instance types, storage volumes, data transfer amounts, and Amazon RDS database instances. The architect wants to input these known specifications and obtain an estimated monthly cost breakdown before launching any resources. Which AWS tool should the architect use to meet this requirement?
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
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AWS TCO Calculator
The AWS Total Cost of Ownership (TCO) Calculator is used to compare the costs of an on-premises environment with AWS, highlighting potential savings. It does not allow you to input detailed service-specific configurations (like exact instance types or data transfer amounts) to produce a monthly bill estimate. Its purpose is a high-level comparison, not a granular cost projection for a planned architecture.
B
Best answer
AWS Pricing Calculator
The AWS Pricing Calculator enables you to select specific AWS services, configure them with your exact requirements (e.g., EC2 instance type, storage size, data transfer), and generate a detailed monthly cost estimate. This is the correct tool for the architect to use when planning a migration and needing a precise forecast of the monthly bill based on known specifications.
C
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AWS Cost Explorer
AWS Cost Explorer is a tool for visualizing, understanding, and managing the costs and usage of AWS resources that are already deployed. It provides historical data and forecasting based on actual consumption, but it cannot generate a cost estimate for a future, not-yet-deployed configuration. Since the architect has not yet launched any resources, Cost Explorer is not applicable.
D
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AWS Budgets
AWS Budgets allows you to set custom budget thresholds and receive alerts when your actual or forecasted cost or usage exceeds those thresholds. It is used for monitoring and controlling costs after resources are running, not for estimating costs of planned configurations. It cannot produce a detailed monthly bill estimate before resources are provisioned.
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 Pricing Calculator — The AWS Pricing Calculator is a web-based tool that allows you to estimate the monthly cost of using AWS services by specifying your exact configuration details (e.g., instance types, storage, data transfer). It is designed for planning and estimating costs before resources are created. The AWS TCO Calculator compares the costs of running an on-premises environment versus AWS, but does not provide a detailed monthly estimate based on specific service configurations. AWS Cost Explorer analyzes historical costs of already-provisioned resources, and AWS Budgets sets cost or usage alerts. Therefore, the correct tool for creating a detailed pre-migration monthly bill estimate is the AWS Pricing Calculator.
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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