- A
AWS Budgets with an Amazon EC2 action
AWS Budgets supports creating budget actions that can automatically stop or terminate Amazon EC2 instances when a cost or usage threshold is exceeded. This meets the requirement for both the automated action and the email alert.
- B
AWS Cost Explorer
Why wrong: AWS Cost Explorer is used for visualizing and analyzing historical cost data and future trends. It does not support configuring automated actions to modify resources.
- C
AWS Trusted Advisor
Why wrong: AWS Trusted Advisor provides recommendations for cost optimization, performance, and security, but it cannot automatically stop resources. It is an advisory tool only.
- D
AWS Organizations
Why wrong: AWS Organizations helps centrally manage multiple accounts and apply service control policies, but it does not provide cost budgeting or automated actions to stop resources when budgets are exceeded.
Quick Answer
The answer is AWS Budgets with an Amazon EC2 action. This is the correct choice because AWS Budgets allows you to define a cost budget with a specific monthly limit, and when forecasted costs exceed that threshold, you can configure an automated action to stop non-critical EC2 instances directly from the budget itself. This meets the requirement for a hard cost limit and automatic instance stoppage, while also sending an email alert via Amazon SNS when the threshold is first crossed. On the AWS Certified Cloud Practitioner CLF-C02 exam, this scenario tests your understanding of AWS Budgets actions, which are a key cost control feature distinct from simple budget alerts. A common trap is to confuse this with AWS Cost Explorer or AWS Lambda, but remember that AWS Budgets natively supports EC2 actions without needing custom code. Memory tip: think “Budget + Stop = EC2 Action” to link the service directly to the automated instance control.
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 has multiple AWS accounts consolidated under AWS Organizations. The finance team wants to set a hard monthly cost limit for a development account. If the forecasted costs for the month exceed that limit, the team wants AWS to automatically stop all non-critical Amazon EC2 instances in that account to prevent overspending. The team also needs to receive an email alert when the cost threshold is first crossed. Which AWS service or feature should the team use to define the budget and configure the automated action?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"first"Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
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 an Amazon EC2 action
AWS Budgets allows you to set a cost budget with a threshold and, when forecasted costs exceed that threshold, trigger an AWS Budgets action to stop specific Amazon EC2 instances. This meets the requirement for a hard monthly cost limit and automated instance stoppage, while also sending an email alert via Amazon SNS when the threshold is first crossed.
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 Budgets with an Amazon EC2 action
Why this is correct
AWS Budgets supports creating budget actions that can automatically stop or terminate Amazon EC2 instances when a cost or usage threshold is exceeded. This meets the requirement for both the automated action and the email alert.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Cost Explorer
Why it's wrong here
AWS Cost Explorer is used for visualizing and analyzing historical cost data and future trends. It does not support configuring automated actions to modify resources.
- ✗
AWS Trusted Advisor
Why it's wrong here
AWS Trusted Advisor provides recommendations for cost optimization, performance, and security, but it cannot automatically stop resources. It is an advisory tool only.
- ✗
AWS Organizations
Why it's wrong here
AWS Organizations helps centrally manage multiple accounts and apply service control policies, but it does not provide cost budgeting or automated actions to stop resources when budgets are exceeded.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse AWS Cost Explorer's cost monitoring capabilities with the ability to set budgets and automate actions, but Cost Explorer lacks the action trigger feature that AWS Budgets provides.
Detailed technical explanation
How to think about this question
AWS Budgets actions use AWS Identity and Access Management (IAM) roles and service-linked roles to execute the stop action on EC2 instances via the EC2 API. The action is triggered when the actual or forecasted cost exceeds the budget threshold, and the email alert is delivered through Amazon Simple Notification Service (SNS) topics configured in the budget. In a real-world scenario, you must ensure the IAM role attached to the budget has the ec2:StopInstances permission scoped to the development account's non-critical instances.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Billing, Pricing, and Support — study guide chapter
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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 Budgets with an Amazon EC2 action — AWS Budgets allows you to set a cost budget with a threshold and, when forecasted costs exceed that threshold, trigger an AWS Budgets action to stop specific Amazon EC2 instances. This meets the requirement for a hard monthly cost limit and automated instance stoppage, while also sending an email alert via Amazon SNS when the threshold is first crossed.
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.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 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 company uses multiple AWS accounts and wants to enforce cost governance. The company needs to set a monthly cost budget of $10,000 for each account. When an account's actual or forecasted costs exceed this budget, the company wants to automatically apply a restrictive IAM policy that prevents the creation of new resources in that account. Additionally, the company wants to receive an email notification when the budget is exceeded. Which AWS feature should the company use to meet these requirements?
medium- A.AWS Cost Explorer
- ✓ B.AWS Budgets
- C.AWS Cost Anomaly Detection
- D.AWS Trusted Advisor
Why B: AWS Budgets allows you to set custom cost and usage budgets, and when actual or forecasted costs exceed the budget threshold, it can trigger actions such as applying an IAM policy to restrict resource creation and sending SNS-based email notifications. This directly meets the requirement for automated enforcement and alerting per account.
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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