AWS Certified Cloud Practitioner (CLF-C02) — Question 538

Which AWS service can be used to send alerts when a specific Amazon CloudWatch alarm is invoked?

Answer options

• A. AWS CloudTrail
• B. Amazon Simple Notification Service (Amazon SNS)
• C. Amazon Simple Queue Service (Amazon SQS)
• D. Amazon EventBridge

Correct answer: B

Explanation

Amazon Simple Notification Service (Amazon SNS) is natively integrated with Amazon CloudWatch to deliver alerts via email, SMS, or HTTP endpoints when alarm thresholds are breached. AWS CloudTrail is designed for tracking user activity and API usage, while Amazon SQS is a message queuing service rather than a direct alerting tool. Amazon EventBridge is an event bus used to route events between services, but SNS remains the standard mechanism for direct CloudWatch alarm notifications.