which act like a failover cluster ZRS? or GZRS? how?
ZRS acts like a failover cluster by keeping your data synced across multiple zones in one region for automatic zone-level protection, while GZRS adds protection by also copying data to a second region to handle full regional failures.
What is the format of ARN for an AWS service?
ARN-Amazon Resourve Name is a Unique identifier assigned for each object/resources in AWS
What is versioning in S3? How does it work?
Keeps multiple versions of an object.
Protects against overwrites and deletions.
In a bucket with versioning enabled, is it possible to restore deleted objects?
Yes, by removing the delete marker.
How can we permanently delete objects in a bucket with versioning enabled?
Delete all object versions and delete markers.
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