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S3 classes & AP P2 (S3 intelligent tiering (Used case? (when access…

- - - - replace the existing object version with NIULL version
      - Make the updated version as latest version
      - Assign the latest version a null version ID
  - - - digest ?
        
        Each digest file contains the names of the log files that were delivered to your Amazon S3 bucket during the last hour, the hash values for those log files, and the digital signature of the previous digest file.
        
        The signature for the current digest file is stored in the metadata properties of the digest file object.
        
        The digital signatures and hashes are used for validating the integrity of the log files and of the digest file itself.
- - - - Ex: jon can access finance prefix object
      - Mary can access marketing file object with prefix only
    - - Restrict access to VPC: An S3 Access Point can limit all S3 storage access to happen from a Virtual Private Cloud (VPC). You can also create a Service Control Policy (SCP) and require that all access points be restricted to a Virtual Private Cloud (VPC), firewalling your data to within your private networks.
    - - Limit access to specific account IDs: With S3 Access Points you can specify VPC Endpoint policies that permit access only to access points (and thus buckets) owned by specific account IDs. This simplifies the creation of access policies that permit access to buckets within the same account, while rejecting any other S3 access via the VPC Endpoint.
        
        . For example, you can now have a “test” access point in every account and region.
    - - can delete and create bucket
      - can't do cross region replication
- - - - Glacier is 90 days