Question 7 of 988
CLF-C02 Billing, Pricing, and Support Practice Question
A company is planning to migrate its on-premises database and web application to AWS. The solutions architect needs to provide a detailed monthly cost estimate for the AWS resources that will be used, including Amazon EC2 instances, Amazon RDS database instances, and Amazon S3 storage. The architect wants to specify instance types, storage sizes, data transfer amounts, and other parameters to get a precise estimate before building the environment. Which AWS tool should the architect use?
⚠ Common exam trap
Many exam-takers confuse the AWS Pricing Calculator (for future estimates) with AWS Cost Explorer (for past analysis), or they mistakenly think the TCO Calculator provides the same detailed monthly breakdown for specific AWS resources.
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 Simple Monthly Calculator) allows users to specify exact instance types, storage sizes, data transfer amounts, and other parameters for services like EC2, RDS, and S3 to generate a detailed monthly cost estimate before provisioning resources. This makes it the correct tool for the architect's requirement of a precise, pre-build cost estimate.
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 Cost Explorer
Why it's wrong here
AWS Cost Explorer is a tool for visualizing, understanding, and managing AWS costs and usage over time. It analyzes historical spending data and provides forecasts, but it is not designed to generate future cost estimates for a specific, unbuilt resource configuration.
When this WOULD be correct
A company wants to analyze its past AWS spending patterns to identify cost-saving opportunities or forecast future costs based on historical data. The architect needs to view and filter cost and usage data for the last 6 months.
- ✗
AWS Budgets
Why it's wrong here
AWS Budgets allows you to set custom budgets to track your cost and usage and receive alerts when you exceed (or are forecasted to exceed) your budget. It is used for monitoring spending, not for creating initial cost estimates for a planned architecture.
When this WOULD be correct
A company wants to set a monthly spending limit for its existing AWS resources and receive notifications when costs approach or exceed that limit. The architect needs to configure cost monitoring and alerts.
- ✓
AWS Pricing Calculator
Why this is correct
The AWS Pricing Calculator (formerly the Simple Monthly Calculator) enables you to explore AWS services and create an estimate for your use cases. You can specify resource configurations, including instance types, storage, data transfer, and more, to generate a detailed monthly cost estimate. This directly meets the architect's requirement.
- ✗
AWS Total Cost of Ownership (TCO) Calculator
Why it's wrong here
The AWS TCO Calculator is used to compare the cost of running an on-premises infrastructure versus running the same workload on AWS. It provides a high-level comparison based on typical assumptions, but it is not designed to generate a detailed monthly cost estimate for a specific AWS resource configuration.
When this WOULD be correct
A company wants to compare the total cost of ownership between running their current on-premises infrastructure versus migrating to AWS, including hardware, software, labor, and facility costs. The TCO Calculator would be the correct tool for this high-level cost comparison.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The CLF-C02 exam frequently reuses these exact scenarios with slightly different constraints.
✓AWS Pricing CalculatorCorrect answer▾
Why this is correct
The AWS Pricing Calculator (formerly the Simple Monthly Calculator) enables you to explore AWS services and create an estimate for your use cases. You can specify resource configurations, including instance types, storage, data transfer, and more, to generate a detailed monthly cost estimate. This directly meets the architect's requirement.
✗AWS Cost ExplorerWrong answer — click to see why▾
Why this is wrong here
AWS Cost Explorer analyzes historical costs and usage, but does not allow specifying instance types, storage sizes, or data transfer amounts to generate a detailed cost estimate for a planned migration.
★ When this WOULD be the correct answer
A company wants to analyze its past AWS spending patterns to identify cost-saving opportunities or forecast future costs based on historical data. The architect needs to view and filter cost and usage data for the last 6 months.
Why candidates choose this
Candidates may confuse Cost Explorer with a cost estimation tool because its name suggests exploring costs, and it can provide cost forecasts, but it cannot model a new, not-yet-deployed architecture.
✗AWS BudgetsWrong answer — click to see why▾
Why this is wrong here
AWS Budgets is used to set cost and usage budgets and receive alerts when thresholds are exceeded, not to generate detailed cost estimates for planned resources before deployment.
★ When this WOULD be the correct answer
A company wants to set a monthly spending limit for its existing AWS resources and receive notifications when costs approach or exceed that limit. The architect needs to configure cost monitoring and alerts.
Why candidates choose this
Candidates may confuse 'budgeting' with 'estimating costs,' thinking AWS Budgets can provide upfront cost estimates for planned resources.
✗AWS Total Cost of Ownership (TCO) CalculatorWrong answer — click to see why▾
Why this is wrong here
The TCO Calculator compares on-premises costs with AWS, but the question asks for a detailed monthly cost estimate for specific AWS resources (instance types, storage sizes, data transfer) before building. The TCO Calculator does not provide that level of granularity for a planned AWS-only architecture.
★ When this WOULD be the correct answer
A company wants to compare the total cost of ownership between running their current on-premises infrastructure versus migrating to AWS, including hardware, software, labor, and facility costs. The TCO Calculator would be the correct tool for this high-level cost comparison.
Why candidates choose this
Candidates may confuse the TCO Calculator with the Pricing Calculator because both deal with cost estimation. The word 'Total Cost of Ownership' sounds comprehensive, leading them to think it can provide detailed monthly estimates for AWS resources.
Analysis generated from the official CLF-C02blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
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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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