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How can a developer implement time measurement and notification for a photo-processing application on Amazon EC2, ensuring processing time is under 5 seconds with minimal operational overhead?
How can a developer implement time measurement and notification for a photo-processing application on Amazon EC2, ensuring processing time is under 5 seconds with minimal operational overhead?
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Explanation:
Option A is correct because it uses Amazon CloudWatch custom metrics and alarms, which are specifically designed for monitoring and alerting based on custom-defined criteria. By publishing the processing time as a custom metric and setting a static threshold of 5 seconds, CloudWatch can automatically notify the development team via Amazon SNS. This approach leverages AWS services for monitoring and notification with minimal setup and maintenance, making it the solution with the least operational overhead.