Which solution will meet these requirements with the LEAST operational overhead?
Create a standard parameter in AWS Systems Manager Parameter Store. Set Expiration and ExpirationNotification policy types.
Create a standard parameter in AWS Systems Manager Parameter Store. Create an AWS Lambda function to expire the configuration and to send Amazon Simple Notification Service (Amazon SNS) notifications.
Create an advanced parameter in AWS Systems Manager Parameter Store. Set Expiration and ExpirationNotification policy types.
Create an advanced parameter in AWS Systems Manager Parameter Store. Create an Amazon EC2 instance with a cron job to expire the configuration and to send notifications.
Explanations:
Standard parameters in AWS Systems Manager Parameter Store do not support expiration and expiration notification. Therefore, this option cannot fulfill the requirements as stated.
While this option can technically achieve the goal by using a Lambda function to handle expiration and notifications, it introduces more operational overhead due to the need for additional coding and managing a Lambda function, which isn’t necessary for simple expiration notifications.
Advanced parameters in AWS Systems Manager Parameter Store support both expiration and expiration notification policy types directly, allowing for automatic handling of expiration and notifications with minimal operational overhead. This option meets all requirements efficiently.
This option requires the setup and maintenance of an EC2 instance and a cron job, which adds significant operational overhead compared to using built-in capabilities of Parameter Store. Additionally, it does not leverage the built-in expiration and notification features available for advanced parameters.
I systematize that the answer is:
Create an advanced parameter in AWS Systems Manager Parameter Store. Set Expiration and ExpirationNotification policy types.