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Answer: Store the data in a Cloud Storage bucket, and configure the bucket's Object Lifecycle Management feature.
The question requires automatically deleting cloud backup data after a specific retention period while minimizing storage costs. Option D (Cloud Storage with Object Lifecycle Management) is optimal because: 1) Cloud Storage is the most cost-effective storage option for backup data, 2) Object Lifecycle Management can automatically delete objects after a specified time period, ensuring compliance with data retention requirements, and 3) it provides a fully automated solution without manual intervention. While options B (Bigtable) and C (BigQuery) offer expiration features, they are more expensive storage solutions designed for specific use cases (NoSQL and analytics respectively), not general backup storage. Option A (persistent disk) requires manual deletion and isn't designed for automated lifecycle management of backup data.
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You need to automatically delete cloud backup data after a specified retention period to comply with data privacy regulations and minimize storage costs. What is the recommended approach?
A
Store the data in a persistent disk, and delete the disk at expiration time.
B
Store the data in a Cloud Bigtable table, and set an expiration time on the column families.
C
Store the data in a BigQuery table, and set the table's expiration time.
D
Store the data in a Cloud Storage bucket, and configure the bucket's Object Lifecycle Management feature.
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