CLF-C02 Billing, Pricing, and Support Practice Question
A company is planning to migrate a legacy application to AWS and wants to estimate the monthly cost of running the new workload. The company needs to compare costs across different Amazon EC2 instance types, regions, and pricing models (On-Demand, Reserved, and Spot). The team also wants to include estimated costs for related services such as Amazon EBS storage and data transfer. Which AWS tool should the company use to generate this cost estimate?
⚠ Common exam trap
Candidates often confuse AWS Cost Explorer (which analyzes past costs) with the AWS Pricing Calculator (which estimates future costs), especially since both tools deal with cost data and are found in the Billing and Cost Management console.
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 the Simple Monthly Calculator) is the correct tool because it allows users to estimate monthly costs by selecting specific EC2 instance types, regions, and pricing models (On-Demand, Reserved, Spot), and it also includes estimates for related services like EBS storage and data transfer. This tool provides a detailed, upfront cost comparison before any resources are deployed, which directly matches the company's requirement to compare costs across different configurations.
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 Pricing Calculator
Why this is correct
Correct. The AWS Pricing Calculator is designed to produce cost estimates for new AWS workloads. You can select specific EC2 instance types, pricing models, regions, and associated services like EBS and data transfer to get a monthly estimate.
- ✗
AWS Cost Explorer
Why it's wrong here
AWS Cost Explorer is incorrect because it is a cost management tool that visualizes and analyzes historical AWS usage and spending after resources have been deployed. While it can provide forecasts based on past consumption patterns, it cannot generate a pre-deployment estimate for a new, not-yet-deployed legacy application migration. Cost Explorer lacks the capability to model hypothetical workloads with specific EC2 instance types, regions, or pricing models.
When this WOULD be correct
A company wants to analyze past EC2 spending trends to identify cost-saving opportunities or forecast future costs based on historical usage patterns.
- ✗
AWS Budgets
Why it's wrong here
Incorrect. AWS Budgets allows you to set custom budgets and receive alerts when costs or usage exceed (or are forecasted to exceed) your budgeted amount. It does not create upfront cost estimates for new services.
When this WOULD be correct
A company wants to set a monthly spending limit for its EC2 usage and receive notifications when costs approach or exceed that limit. AWS Budgets would be the correct tool to create and monitor such budgets.
- ✗
AWS Trusted Advisor
Why it's wrong here
Incorrect. AWS Trusted Advisor inspects your AWS environment and offers recommendations to help you follow best practices, such as optimizing costs on underutilized resources. It does not provide cost estimation for new workloads before deployment.
When this WOULD be correct
A company wants to identify underutilized EC2 instances to reduce costs and receives recommendations for Reserved Instance purchases based on existing usage. AWS Trusted Advisor would be the correct tool for this scenario.
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
Correct. The AWS Pricing Calculator is designed to produce cost estimates for new AWS workloads. You can select specific EC2 instance types, pricing models, regions, and associated services like EBS and data transfer to get a monthly estimate.
✗AWS Cost ExplorerWrong answer — click to see why▾
Why this is wrong here
AWS Cost Explorer analyzes historical costs and usage, but cannot generate upfront cost estimates for migrating to different instance types, regions, or pricing models before deployment.
★ When this WOULD be the correct answer
A company wants to analyze past EC2 spending trends to identify cost-saving opportunities or forecast future costs based on historical usage patterns.
Why candidates choose this
Candidates confuse cost estimation for a new workload with cost analysis of existing usage, assuming Cost Explorer can also predict costs for planned resources.
✗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 you exceed or are forecasted to exceed them, not to generate upfront cost estimates for migration planning.
★ When this WOULD be the correct answer
A company wants to set a monthly spending limit for its EC2 usage and receive notifications when costs approach or exceed that limit. AWS Budgets would be the correct tool to create and monitor such budgets.
Why candidates choose this
Candidates may confuse cost estimation with cost monitoring, assuming that a tool named 'Budgets' can also help estimate costs before migration.
✗AWS Trusted AdvisorWrong answer — click to see why▾
Why this is wrong here
AWS Trusted Advisor provides recommendations for cost optimization, performance, security, and fault tolerance, but it does not allow you to generate upfront cost estimates for different EC2 instance types, regions, and pricing models before migration.
★ When this WOULD be the correct answer
A company wants to identify underutilized EC2 instances to reduce costs and receives recommendations for Reserved Instance purchases based on existing usage. AWS Trusted Advisor would be the correct tool for this scenario.
Why candidates choose this
Candidates may confuse Trusted Advisor's cost optimization recommendations with the ability to estimate costs for new workloads, assuming it can generate upfront pricing estimates.
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 |
Go deeper
Related to this question
About these practice questions
This CLF-C02 question is part of Courseiva's 988-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
Same concept, more angles
3 more ways this is tested on CLF-C02
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A startup is planning to migrate its web application to AWS. The CTO wants to estimate the monthly cost of running the application on Amazon EC2 and Amazon RDS, including data transfer costs. The team has not yet created any AWS accounts or resources. They need a tool that allows them to input assumptions about instance types, storage, and data transfer to generate a detailed cost estimate. Which AWS tool should they use?
medium- A.AWS Cost Explorer
- B.AWS Budgets
- ✓ C.AWS Pricing Calculator
- D.AWS Trusted Advisor
Why C: AWS Pricing Calculator (option C) is the correct tool because it allows users to input assumptions about EC2 instance types, RDS configurations, storage, and data transfer to generate a detailed monthly cost estimate before any AWS resources are created. Unlike Cost Explorer, which requires existing usage data, the Pricing Calculator is designed for upfront cost modeling and planning.
Variation 2. A solutions architect is designing a new architecture on AWS that includes EC2, RDS, S3, and data transfer. Before deploying anything, they want to estimate the monthly cost of running this architecture. Which AWS tool should they use?
easy- A.AWS Cost Explorer
- B.AWS Budgets
- ✓ C.AWS Pricing Calculator
- D.AWS Trusted Advisor
Why C: AWS Pricing Calculator is the correct tool because it allows you to estimate the monthly cost of AWS services before deployment by specifying resource configurations (e.g., EC2 instance type, RDS storage, S3 data transfer). Unlike Cost Explorer, which analyzes historical costs, the Pricing Calculator provides upfront cost projections for new architectures.
Variation 3. 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?
medium- A.AWS TCO Calculator
- ✓ B.AWS Pricing Calculator
- C.AWS Cost Explorer
- D.AWS Budgets
Why B: 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.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.