Explanation
Amazon CloudWatch is the correct service for setting up billing alerts in AWS. Here's why:
- Amazon CloudWatch allows you to monitor your AWS resources and applications in real-time. It can track AWS billing metrics and trigger alarms when certain thresholds are exceeded.
- Billing Alerts are specifically configured through CloudWatch to monitor estimated AWS charges and send notifications via Amazon SNS when costs exceed predefined limits.
- AWS Cost Explorer is primarily for analyzing and visualizing cost and usage data over time, not for real-time alerting.
- AWS Cost and Usage Report provides detailed cost and usage data for analysis and reporting purposes.
- AWS Pricing Calculator is used for estimating costs before deploying resources, not for monitoring actual billing.
The workflow for billing alerts is:
- Enable billing alerts in the AWS Billing console
- CloudWatch monitors the billing metrics
- When the threshold is exceeded, CloudWatch triggers an SNS notification
- The company receives the alert through their preferred notification channel (email, SMS, etc.)
