S3 is an Object storage service in which customers can store unlimited size of data (although unlimited storage is not possible in strictly speaking, AWS S3 offers way more than enough storage capacity for any type of requirement)
AWS guarantees 99.999999999% durability and 99.99% availability for S3
S3 stores in terms of Buckets and Objects.
Bucket is like a folder. Objects are like files inside the buckets (folders)
While creating a bucket, the name of bucket should be unique. Namespace is common for all the AWS users.
Inside a bucket, we can create folder also. Folder names need not be unique among all users.
We can configure the permissions (public or private) for any bucket or object.
If an object is made public, then we can access the object simply with a URL or API on a browser.
Maximum size allowed for a single object in S3 is 5 TB
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