A company wants to track the monthly cost and usage of all Amazon EC2 instances in a specific AWS environment. Which AWS service or tool will meet these requirements?

Question

Options

• AAWS Cost Anomaly Detection
• BAWS Budgets
• CAWS Compute Optimizer
• DAWS Trusted Advisor

• A
  5% (2)
• B
  93% (38)
• C
  2% (1)

Explanation

AWS Budgets (B) is correct because it lets you set custom cost and usage budgets, track actual spending against those budgets on a monthly basis, and receive alerts - directly addressing the requirement to monitor EC2 costs and usage over time.

Why the others are wrong:

• A. AWS Cost Anomaly Detection - detects unexpected spending spikes using ML, but doesn't provide structured monthly tracking or usage visibility.
• C. AWS Compute Optimizer - analyzes EC2 resource utilization to recommend right-sizing, not to track costs or usage spending.
• D. AWS Trusted Advisor - offers broad best-practice checks across cost, security, and performance, but isn't designed for granular monthly cost/usage tracking.

Memory tip: Think of "Budgets" literally - if a question asks about tracking, monitoring, or alerting on costs and usage over time, AWS Budgets is the answer. Cost Anomaly Detection = surprises, Compute Optimizer = efficiency recommendations, Trusted Advisor = general health checks.

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