In Amazon S3 storage, which option is a globally unique identifier for an object?

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Multiple Choice

In Amazon S3 storage, which option is a globally unique identifier for an object?

Explanation:
In S3, you need a reference that uniquely identifies an object across the entire system. A GUID, or Globally Unique Identifier, is designed to be unique everywhere and every time, so it serves as a robust concept for identifying a specific object without any collisions. This matches the idea of referencing an object unambiguously, even when it’s replicated across regions or accounts. Metadata describes attributes of the object, not its identity. Equally sized data blocks are about data organization, not identifying a specific object. Folder hierarchy is a naming illusion in S3’s flat namespace and doesn’t provide a universal, unique reference on its own.

In S3, you need a reference that uniquely identifies an object across the entire system. A GUID, or Globally Unique Identifier, is designed to be unique everywhere and every time, so it serves as a robust concept for identifying a specific object without any collisions. This matches the idea of referencing an object unambiguously, even when it’s replicated across regions or accounts.

Metadata describes attributes of the object, not its identity. Equally sized data blocks are about data organization, not identifying a specific object. Folder hierarchy is a naming illusion in S3’s flat namespace and doesn’t provide a universal, unique reference on its own.

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