A start-up firm has created a cloud storage application that gives users the ability to store any amount of personal data & share them with their contacts. For this, they are using Amazon S3 buckets to store user data. During the last quarter, the costing team has observed a surge in storage costs for the S3 bucket. Further checking observed that many 100 GB files are uploaded by users & are in a partially completed state. As an AWS consultant, the IT Team requests you to prevent this from happening again by stopping incomplete multipart uploads and deleting all parts associated with the multipart upload if they do not complete within a specified number of days after initiation. Which of the following actions can be taken to meet this requirement cost-effectively with the least effort?

Answer options:

A.Create an S3 lifecycle Configuration to abort incomplete multipart uploads.
B.Manually delete incomplete multipart uploads from the S3 bucket.
C.Use Cron tool to identify incomplete uploads & delete those files.
D.All Incomplete uploads are automatically deleted every three months by Amazon S3.

Correct Answer – A
Amazon S3 Lifecycle rules can be configured to abort all multipart uploads which are failing to complete in a specific time period. For all files from size 5 MB to 5GB, the multipart upload can be used. 
Option B is incorrect as this will need additional manual efforts.
Option C is incorrect as this incurs additional cost & admin work to use Cron tools.
Option D is incorrect as incomplete uploads are not automatically deleted.
For more information on using S3 Lifecycle policies, refer to the following URL:
https://docs.aws.amazon.com/AmazonS3/latest/dev/lifecycle-configuration-examples.html