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Answer: Use the fields request parameter.
To retrieve only specific metadata properties of Cloud Storage objects without fetching the object data, using the `fields` request parameter is the optimal approach. This parameter allows specifying which metadata fields to include in the API response, reducing the payload size and improving performance. Options A (patch), B (compose), and C (copy) are unrelated to metadata retrieval—they are used for modifying, combining, or copying objects, respectively. Thus, option D directly addresses the requirement by minimizing data transfer and focusing on metadata.
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How can you efficiently retrieve only the metadata (without object data) for user objects in Cloud Storage buckets to meet privacy and data residency requirements while optimizing performance?
A
Use the patch method.
B
Use the compose method.
C
Use the copy method.
D
Use the fields request parameter.