Question 602 of 988
CLF-C02 Billing, Pricing, and Support Practice Question
A company runs a batch processing workload on Amazon EC2 instances. The finance team has set a monthly budget of $10,000 for this workload. They want to automatically stop the batch processing instances if the accumulated costs for the month exceed $8,000, to prevent overspending. The company needs a native AWS solution that can monitor the costs and take corrective action automatically. Which AWS feature should the company use to meet these requirements?
⚠ Common exam trap
Candidates often confuse AWS Cost Explorer's reporting capabilities with automated remediation, or assume Trusted Advisor can take corrective actions, when in fact only AWS Budgets with budget actions provides native, automated cost-based instance control.
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 Budgets with budget actions configured to stop EC2 instances
AWS Budgets allows you to set a cost budget of $8,000 and attach a budget action that triggers an AWS Systems Manager (SSM) automation document to stop EC2 instances when actual or forecasted costs exceed the threshold. This provides a native, automated, and serverless solution to enforce cost controls without manual intervention.
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 Budgets with budget actions configured to stop EC2 instances
Why this is correct
Correct. AWS Budgets allows you to define cost or usage budgets and set budget actions that trigger automatically when a threshold is exceeded. For example, you can stop EC2 instances to prevent further spending. This meets the requirement natively.
- ✗
AWS Cost Explorer with a custom cost threshold report
Why it's wrong here
Incorrect. AWS Cost Explorer provides interactive dashboards and reports for analyzing cost and usage data, but it does not automatically take corrective actions like stopping instances. It is a visualization and analysis tool, not an automation tool.
When this WOULD be correct
A company needs to analyze historical cost trends and identify cost drivers to optimize spending, without requiring automated actions. AWS Cost Explorer with custom reports would be the correct choice.
- ✗
AWS Trusted Advisor with a cost optimization check
Why it's wrong here
AWS Trusted Advisor with a cost optimization check is incorrect because Trusted Advisor is an advisory service that inspects your AWS environment and provides recommendations, such as identifying idle EC2 instances or underutilized resources. It does not monitor real-time spending thresholds, and it cannot be configured to automatically stop EC2 instances when a cost limit is exceeded. While Trusted Advisor offers a cost optimization check, it is purely informational and requires manual intervention to act on its findings, unlike AWS Budgets with budget actions, which automates the stop action natively.
When this WOULD be correct
A company wants to identify underutilized EC2 instances to reduce costs and needs recommendations for rightsizing or stopping idle instances. Trusted Advisor's cost optimization checks would be the correct native AWS solution.
- ✗
AWS Organizations with a service control policy (SCP)
Why it's wrong here
Incorrect. Service control policies (SCPs) in AWS Organizations allow you to centrally control permissions for member accounts, such as restricting the launch of certain instance types or services. They do not monitor costs or trigger actions based on spending thresholds.
When this WOULD be correct
A company needs to restrict which AWS services or actions are allowed across multiple accounts in an organization. For example, to prevent any EC2 instance from being launched in non-production accounts, an SCP would be the correct native solution.
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 Budgets with budget actions configured to stop EC2 instancesCorrect answer▾
Why this is correct
Correct. AWS Budgets allows you to define cost or usage budgets and set budget actions that trigger automatically when a threshold is exceeded. For example, you can stop EC2 instances to prevent further spending. This meets the requirement natively.
✗AWS Cost Explorer with a custom cost threshold reportWrong answer — click to see why▾
Why this is wrong here
AWS Cost Explorer provides cost visualization and analysis but does not support automated actions like stopping EC2 instances based on cost thresholds.
★ When this WOULD be the correct answer
A company needs to analyze historical cost trends and identify cost drivers to optimize spending, without requiring automated actions. AWS Cost Explorer with custom reports would be the correct choice.
Why candidates choose this
Candidates may think Cost Explorer can trigger actions because it offers cost monitoring and alerts, but it lacks native automation capabilities for corrective actions.
✗AWS Trusted Advisor with a cost optimization checkWrong answer — click to see why▾
Why this is wrong here
AWS Trusted Advisor provides cost optimization recommendations but does not offer automated corrective actions to stop EC2 instances based on cost thresholds.
★ When this WOULD be the correct answer
A company wants to identify underutilized EC2 instances to reduce costs and needs recommendations for rightsizing or stopping idle instances. Trusted Advisor's cost optimization checks would be the correct native AWS solution.
Why candidates choose this
Candidates may confuse Trusted Advisor's cost optimization checks with automated cost control, assuming it can both identify and automatically remediate cost issues.
✗AWS Organizations with a service control policy (SCP)Wrong answer — click to see why▾
Why this is wrong here
Service control policies (SCPs) in AWS Organizations are used to manage permissions across accounts, not to monitor costs or trigger actions based on budget thresholds. They cannot automatically stop EC2 instances when costs exceed a limit.
★ When this WOULD be the correct answer
A company needs to restrict which AWS services or actions are allowed across multiple accounts in an organization. For example, to prevent any EC2 instance from being launched in non-production accounts, an SCP would be the correct native solution.
Why candidates choose this
Candidates may confuse SCPs with budget actions because both involve cost control, but SCPs are for governance and access control, not for automated cost-based actions.
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
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
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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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