Which set of steps would be necessary to achieve this?
Create an event with Amazon EventBridge that will monitor the S3 bucket and then insert the records into DynamoDB.
Configure an S3 event to invoke an AWS Lambda function that inserts records into DynamoDB.
Create an AWS Lambda function that will poll the S3 bucket and then insert the records into DynamoDB.
Create a cron job that will run at a scheduled time and insert the records into DynamoDB.
Explanations:
While Amazon EventBridge can monitor events and trigger actions, it is not specifically designed for S3 bucket events. S3 events should be configured directly to trigger a Lambda function instead.
Configuring an S3 event to invoke an AWS Lambda function is the correct approach. When a new file is added to the S3 bucket, it triggers the Lambda function, which can then process the file and insert the record into DynamoDB.
Polling the S3 bucket using an AWS Lambda function is not an efficient solution. S3 is event-driven, and polling introduces unnecessary complexity and latency. It is better to use event notifications to trigger Lambda directly.
Creating a cron job to run at scheduled times is not suitable for responding to real-time events like file uploads. This method would not provide immediate insertion into DynamoDB upon file upload and would introduce delays.
I deduce that the answer is:
Configure an S3 event to invoke an AWS Lambda function that inserts records into DynamoDB.