Which AWS feature can send alerts when cost or usage exceeds a defined threshold?
Show answer and explanation
Answer: B
AWS Budgets compares actual and forecast usage against thresholds you define and sends alerts through email or SNS. Budgets can track cost, usage, reservation coverage, or Savings Plans, and can be scoped by service, tag, or account. Unusual spend is often the first sign of a compromised key spinning up resources.
Why the other options are wrong
- A. Trusted Advisor offers recommendations and some quota checks, but it does not send threshold-based spend alerts.
- C. Cost Explorer visualizes and analyzes spend; alerting requires a budget.
- D. The Billing console shows current charges but does not provide configurable threshold notifications.