Professional Data Engineer

By Google · Question Mode

QuestionQ27

Storing the data

You are planning to use Cloud Storage as part of a data lake solution. The Cloud Storage bucket will hold objects ingested from external systems. Each object will be ingested once, and individual-object access patterns will be random. You want to minimize the cost of storing and retrieving these objects while ensuring that any cost-optimization measures are transparent to users and applications. What should you do?

Explanation

Cloud Storage Autoclass automatically selects and transitions storage classes according to each object's access pattern, making it suitable for unknown or unpredictable access. It manages those transitions without application changes and Autoclass-managed objects do not incur retrieval fees, avoiding the retrieval-cost risk of placing randomly accessed objects in Coldline through a fixed lifecycle rule.

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