You have an S3 bucket that is used to store important data for a web application. You want to receive an email notification whenever an object removal event happens in the S3 bucket. How would you configure the S3 bucket to achieve this requirement?

Answer options:

A.Configure the object-level logging for the S3 bucket and register an SNS topic to provide notifications.
B.Configure the server access logging for the object removal events. Add an SNS topic to notify the team via emails.
C.Set up an AWS Config rule to check the object deletion events. Register a Lambda function to send notifications.
D.Configure an S3 event notification for the object removal events. Send the events to an SNS topic.

Correct Answer – D
Option A is incorrect because object-level logging is used to record object-level API activities in CloudTrail. Users cannot register an SNS topic for object-level logging.
Option B is incorrect because server access logging does not trigger an SNS topic for the object removal events.
Option C is incorrect because you would need to write a custom Lambda function in the AWS Config rule to check the object removal events. This method is more complicated than option
D.Option D is CORRECT because with an S3 event notification, you can select which events are enabled for the notification.
The events can be sent to an SNS topic, an SQS queue, or a Lambda function.
Reference:
https://docs.aws.amazon.com/AmazonS3/latest/dev/NotificationHowTo.html.
https://docs.aws.amazon.com/AmazonS3/latest/user-guide/enable-event-notifications.html.