❔ Interview question

What is an S3 storage and what is it used for?

Answer: S3 (Simple Storage Service) is a cloud-based object storage service designed for storing any type of files, from images and backups to static websites.

It is scalable, reliable, and provides access to files via URLs. Unlike traditional file systems, S3 does not have a folder hierarchy — everything is stored as objects in "buckets" (containers), and access can be controlled through policies and permissions.

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