Exam AWS Certified SysOps Administrator - Associate topic 1 question 193 discussion

Ans: A Ref. https://aws.amazon.com/es/blogs/storage/adding-and-removing-object-tags-with-s3-batch-operations/

"With this feature, you can make changes to object metadata and properties, or perform other storage management tasks, such as" "replacing object tag sets" https://aws.amazon.com/s3/features/batch-operations/

S3 Batch Operations is the most operationally efficient way to meet the requirement of replacing a tag on all objects in an S3 bucket. S3 Batch Operations allows you to perform large-scale batch operations on Amazon S3 objects, including updating tags on objects. Here's why option A is the best choice: S3 Batch Operations: Allows you to perform actions, such as tagging, on a large number of objects at once. Is designed for efficiency and scalability when dealing with large-scale operations. Is a native AWS service specifically built for performing batch operations on S3 objects.

A is by far the MOST operationally efficient way, see docs below https://aws.amazon.com/blogs/storage/adding-and-removing-object-tags-with-s3-batch-operations/

A is the correct answer. The question is asking to replace existing tag with another, not adding new tags. Therefore, batch operations is correct (A). Source: https://docs.aws.amazon.com/AmazonS3/latest/userguide/batch-ops-put-object-tagging.html

If you replace all object tags, existing tags that you do not want to replace will be lost. You'll need to read those tags to retain them and update the tags you're trying to update.