Which AWS service or feature should the developer use to meet this requirement?

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A developer creates a customer managed key for multiple AWS users to encrypt data in Amazon S3.The developer configures Amazon Simple NotificationService (Amazon SNS) to publish a message if key deletion is scheduled.The developer needs to preserve any SNS messages that cannot be delivered so that those messages can be reprocessed.

Which AWS service or feature should the developer use to meet this requirement?

Amazon Simple Email Service (Amazon SES)

AWS Lambda

Amazon Simple Queue Service (Amazon SQS)

Amazon CloudWatch alarm

Explanations:

Amazon Simple Email Service (SES) is primarily used for sending emails. It does not provide a mechanism for preserving undelivered messages from SNS.

AWS Lambda can process messages from SNS but does not inherently provide a feature to preserve undelivered SNS messages for later reprocessing.

Amazon Simple Queue Service (SQS) can be used to create a queue that SNS can publish messages to. If messages cannot be delivered, they can be preserved in the SQS queue for later reprocessing.

Amazon CloudWatch alarms are used for monitoring and alerting but do not provide message storage or reprocessing capabilities for undelivered SNS messages.

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