S3
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Cross Region Replication (CRR) is a feature of S3 that can be activated at Bucket level by adding a replication configuration to the source bucket. A bucket’s automatic replication is specific to a Region and it is not Global. With CRR, automatic data replication can be setup across regions.
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The Simple Storage Service is a secure, durable, highly scalable and highly available Object Storage by AWS. Object Store means we can store Files but cannot install software. S3 provides easy to use, web service interface to store/retrieve any amount of data from anywhere.
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S3 Security is divided in four categories- Privacy, Log Trail, Access Permissions and Encryption.
Vipul Pathak 