- A
AWS TCO Calculator
Why wrong: 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
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
AWS Cost Explorer
Why wrong: 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
AWS Budgets
Why wrong: 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.
CLF-C02 Billing, Pricing, and Support Practice Question
This CLF-C02 practice question tests your understanding of billing, pricing, and support. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
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
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
AWS Pricing Calculator
The AWS Pricing Calculator (formerly AWS Simple Monthly Calculator) allows users to input specific configuration details such as EC2 instance types, storage volumes, data transfer amounts, and RDS database instances to generate a detailed monthly cost estimate before launching any resources. This tool is designed for upfront cost planning and provides a breakdown of estimated charges based on the user's exact specifications, making it the correct choice for the architect's requirement.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS TCO Calculator
Why it's wrong here
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.
- ✓
AWS Pricing Calculator
Why this is correct
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.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Cost Explorer
Why it's wrong here
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.
- ✗
AWS Budgets
Why it's wrong here
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 traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the AWS Pricing Calculator with the AWS TCO Calculator, mistakenly thinking both can generate detailed monthly cost estimates for specific configurations, but the TCO Calculator is designed for high-level cost comparison between on-premises and cloud, not for granular resource-level pricing.
Detailed technical explanation
How to think about this question
The AWS Pricing Calculator uses real-time pricing data from the AWS Price List API and allows users to model complex architectures with multiple services, including EC2, RDS, S3, and data transfer. It supports features like upfront vs. reserved pricing, different storage tiers, and data transfer cost calculations, which are critical for accurate budgeting. In real-world scenarios, architects often use this tool to compare pricing across regions or to estimate the impact of choosing different instance families (e.g., compute-optimized vs. memory-optimized) on the monthly bill.
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.
TExam Day Tips
- 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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Billing, Pricing, and Support — This question tests Billing, Pricing, and Support — 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 (formerly AWS Simple Monthly Calculator) allows users to input specific configuration details such as EC2 instance types, storage volumes, data transfer amounts, and RDS database instances to generate a detailed monthly cost estimate before launching any resources. This tool is designed for upfront cost planning and provides a breakdown of estimated charges based on the user's exact specifications, making it the correct choice for the architect's requirement.
What should I do if I get this CLF-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This CLF-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CLF-C02 exam.
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