AWS Budgets and Cost Allocation Tags for Departmental Spending

SAA-C03 By islever Editorial Last updated

Design cost-optimized storage solutions.

Short answer

A Use cost allocation tags to label owners and create usage budgets in AWS Budgets with an alert threshold at 60%.

Question

A company wants to run its experimental workloads in the AWS Cloud. The company has a budget for cloud spending. The company's CFO is concerned about cloud spending accountability for each department. The CFO wants to receive notification when the spending threshold reaches 60% of the budget. Which solution will meet these requirements?
  1. Use cost allocation tags on AWS resources to label owners. Create usage budgets in AWS Budgets. Add an alert threshold to receive notification when spending exceeds 60% of the budget. Correct Answer
  2. Use AWS Cost Explorer forecasts to determine resource owners. Use AWS Cost Anomaly Detection to create alert threshold notifications when spending exceeds 60% of the budget.
  3. Use cost allocation tags on AWS resources to label owners. Use AWS Support API on AWS Trusted Advisor to create alert threshold notifications when spending exceeds 60% of the budget.
  4. Use AWS Cost Explorer forecasts to determine resource owners. Create usage budgets in AWS Budgets. Add an alert threshold to receive notification when spending exceeds 60% of the budget.

Key Takeaways

The core concept tested is the distinction between cost monitoring tools (Cost Explorer) and cost control/alerting tools (Budgets), with the common trap being the selection of Cost Explorer forecasts for notification purposes.

This question addresses how to implement spending accountability by department using AWS Cost Allocation Tags combined with AWS Budgets alerts. It establishes that AWS Budgets is the correct service for setting threshold notifications, while Cost Explorer is used for analysis rather than alerting.

Common mistake: Option D is a common distractor because it includes both Cost Explorer and Budgets; however, Cost Explorer forecasts are predictive analytics features and cannot trigger real-time alerts when a specific threshold is reached.

Expert Analysis

Why the Answer Is Correct

Option A is the correct solution because it combines two essential components: identification and alerting. Cost allocation tags allow you to categorize resources by department, ensuring that spending can be tracked per owner. AWS Budgets is the dedicated service for creating budgets and setting up notifications (via SNS or email) when actual or forecasted spending exceeds a specified percentage (e.g., 60%) of the budget.

Why the Other Options Are Wrong

Options B and D rely on AWS Cost Explorer. While Cost Explorer provides powerful forecasting and visualization capabilities, it does not natively support creating alert thresholds for spending notifications. Option C suggests using the AWS Support API via Trusted Advisor. Trusted Advisor checks best practices (like idle resources) but does not provide customizable budget-based alerting functionality through its API for this use case.

Community Comment Notes

Community consensus strongly supports Option A. Users highlighted that Cost Explorer lacks alerting capabilities ('Nothing with cost explorer in it'). One commenter noted the official documentation confirms AWS Budgets is the tool for 'budgets-controls'. Another user simply affirmed Option A as the only viable choice given the options provided.

Official Reference

https://docs.aws.amazon.com/cost-management/latest/userguide/budgets-controls.html

This link opens the official vendor documentation in a new tab.

Exam Strategy

Always distinguish between services that analyze costs (Cost Explorer, Cost & Usage Report) and those that control or alert on costs (AWS Budgets, Cost Anomaly Detection). For threshold-based notifications, AWS Budgets is almost always the primary answer unless specific anomaly detection is requested.

Frequently Asked Questions

Why can't I use Cost Explorer for spending alerts?

Cost Explorer is an analytics tool for viewing historical and forecasted data. It does not have a built-in feature to send notifications when a spending threshold is crossed.

Do I need to enable Cost Allocation Tags before using AWS Budgets?

Yes, to track spending by department, you must first tag your resources with the relevant department identifiers and activate those tags in the Billing Console.

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Community Votes

A
100%

100% of anonymous learners picked answer A. Votes are pick records left by other test-takers — they are not the verified answer.

Discussion 3 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 3

  1. NayeraB 👍 8 Answered A
    Nothing with cost explorer in it, and I don't want to be Captain Obvious but we need to set the budget alerts through AWS Budgets, so A
  2. Scheldon 👍 3 Answered A
    AnswerA https://docs.aws.amazon.com/cost-management/latest/userguide/budgets-controls.html
  3. Andy_09 👍 4
    Option A

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