AWS Certified Data Engineer – Associate (DEA-C01)

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A financial services company is required by law to retain transaction logs for seven years. For the first 90 days, the logs are frequently accessed for reporting. After 90 days, access becomes rare, but the data must be retrievable. To optimize storage costs, which strategy should a data engineer implement using cloud object storage?

Compress the logs after 90 days but store them in the same standard storage class. Store all data in a standard, high-availability storage class for the entire seven years. Move the data to a managed relational database after 90 days for long-term storage. Implement a lifecycle policy to transition data from a standard access tier to an archival tier after 90 days.

Correct Answer:

Implement a lifecycle policy to transition data from a standard access tier to an archival tier after 90 days.

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