A website collects daily poll responses in a DynamoDB table and only needs to retain responses until the next day. The developer added an expiration_date attribute to each item. What is the simplest way to automatically remove expired responses from the table?

Enabling DynamoDB Time To Live (TTL) on the table and specifying the expirationdate attribute is the simplest and most cost-effective solution. TTL automatically deletes items from the table after their expiration time, offloading the management of item deletion to DynamoDB. Creating a Lambda function, an AWS Fargate task, or an AWS Glue job to delete expired items would all work, but they are more complex and incur additional operational overhead and costs. These solutions require writing and maintaining code, setting up execution environments, and configuring schedules, whereas TTL is a built-in feature of DynamoDB designed for this exact use case.