What BigQuery setting controls how long exported data remains available in a dataset for retention purposes?

• A. Retention period for the dataset.
• B. Encryption key setting
• C. Partitioning configuration
• D. Dataset location

Answer: (A)

Data retention in BigQuery is controlled at the dataset level through the dataset’s retention setting. This retention period determines how long data stored in that dataset—such as tables created there or results from exports—remains accessible before BigQuery automatically deletes it. Setting a retention period helps enforce governance and control storage costs by ensuring older data doesn’t persist indefinitely. If you export data into a dataset, that exported data is subject to the dataset’s retention policy and will be retained only for the configured duration. The other options don’t govern how long data stays available: encryption key settings affect encryption, partitioning configuration affects organization and performance, and dataset location pertains to where data is stored geographically.