Answer By Deepseek

To delegate control to colleagues for managing buckets and files in Cloud Storage while following Google-recommended practices, you should grant the least privileged roles that provide the necessary permissions. Here's the breakdown of the roles:

• Storage Admin: This role provides full control over Cloud Storage resources, including managing buckets and objects. It is the most comprehensive role for Cloud Storage management.
• Storage Object Admin: This role allows managing objects (files) within buckets but does not include permissions to manage the buckets themselves.
• Storage Object Creator: This role only allows creating objects (files) in buckets but does not provide permissions to manage or delete objects.

Recommended Role:

B. Storage Admin is the most appropriate role to grant if your colleagues need to manage both buckets and files in Cloud Storage. This role follows the principle of least privilege while providing the necessary permissions for full Cloud Storage management.

Why not the other options?

• A. Project Editor: This role provides broad permissions across the entire project, including services unrelated to Cloud Storage. It violates the principle of least privilege.
• C. Storage Object Admin: This role is insufficient if your colleagues also need to manage buckets (e.g., create, delete, or configure buckets).
• D. Storage Object Creator: This role is too limited, as it only allows creating objects and does not permit managing or deleting them.

Conclusion:

The best role to grant is B. Storage Admin, as it provides the necessary permissions for managing both buckets and objects in Cloud Storage while adhering to Google's recommended practices.