CLF-C02 Billing, Pricing, and Support Practice Question
A company wants to receive alerts when their AWS spend exceeds a specific threshold. Which AWS service should they use to configure these alerts?
⚠ Common exam trap
Candidates often confuse CloudWatch Billing alarms (which only monitor total estimated charges) with AWS Budgets (which supports per-service, custom threshold, and forecast-based alerts), leading them to select the legacy option D instead of the more capable and recommended service B.
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
AWS Budgets allows you to set custom cost and usage budgets and receive alerts when your actual or forecasted spend exceeds a defined threshold. It is the primary service designed for proactive cost monitoring and alerting, supporting both monthly and daily budget tracking with configurable actions such as email notifications or automated responses via AWS Chatbot.
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 an interactive tool for visualizing, analyzing, and exploring historical cost and usage data across accounts and services. It also provides forecasts, but it is designed for retrospective analysis and trend discovery, not for creating threshold-based alerts or notifications. You cannot configure Cost Explorer to trigger a message or action when a spending limit is approached or exceeded, so it does not fulfill the alerting requirement.
- ✓
AWS Budgets
Why this is correct
AWS Budgets is the purpose-built service for creating cost, usage, and reservation budgets. Unlike generic monitoring tools, it lets you set custom threshold alerts based on actual spend or forecasts, and triggers Amazon SNS notifications or automated actions like stopping EC2 instances when thresholds are exceeded. AWS recommends Budgets as the primary solution for proactive spend alerting.
- ✗
AWS Cost and Usage Report
Why it's wrong here
The AWS Cost and Usage Report (CUR) delivers highly granular, raw billing data to an Amazon S3 bucket. While this data is essential for detailed cost analysis and for third-party tools to process, CUR itself is a passive data export and cannot send threshold-based alerts or notifications. To derive actionable insight from CUR, you must build additional tooling such as Amazon Athena or a separate monitoring pipeline.
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Amazon CloudWatch Billing alarms
Why it's wrong here
Amazon CloudWatch Billing alarms can monitor the EstimatedCharges metric and trigger an Amazon SNS notification when a dollar threshold is crossed. However, this feature must be manually enabled in the us-east-1 region and only provides simple, actual-spend-based alarms. It lacks the richer capabilities of AWS Budgets such as forecasting, reservation/savings-plan utilization alerts, and budget-driven automated actions, making it a basic but not purpose-built alternative.
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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.