Allows to store and retrieve any amount of data at anytime from anywhere on the web

Features

11 9s Durability (Uses Checksum to ensure data is not corrupted)
Flexible
Availability
Cost Efficient
Scalable
Secure (Encryption, Policies)

Buckets & Objects

Bucket is an container where data is stored
Object is data plus metadata
Metadata includes Key which is the name of the file, Version Id which is the current version of the file
Key is an unique identifier for an object within a bucket

NOTE

  • When we create a bucket we need to specify a unique name.
  • Buckets name are global in nature.
  • After a bucket is created, the name of that bucket cannot be used by another AWS account in any AWS Region until the bucket is deleted.