After resetting the data warehouse, what must you do to repopulate data?

After resetting the data warehouse, what must you do to repopulate data?

• A. Activate each data pipeline for the functional areas.
• B. Rebuild the data models from scratch.
• C. Restore data from backups.
• D. Reinstall FDI.

Answer: (A)

The key idea is that data enters the warehouse through dedicated data pipelines, one for each functional area. After a reset, the warehouse schema is there but the data is empty, so repopulating data means starting the ingestion processes again. Activating each data pipeline triggers the ETL steps defined for that functional area—extracting from source systems, transforming as required, and loading into the warehouse. Once these pipelines are enabled, they will begin or resume loading data according to their schedules or manual runs, effectively repopulating the warehouse with current information. Rebuilding data models from scratch isn’t necessary because the warehouse structure is already in place, and the data loads are driven by the pipelines. Restoring from backups would bring back data from a prior state, not re-ingest fresh data through the defined processes. Reinstalling the tool wouldn’t populate data either; it merely reinstalls the software, not the data loads.

The key idea is that data enters the warehouse through dedicated data pipelines, one for each functional area. After a reset, the warehouse schema is there but the data is empty, so repopulating data means starting the ingestion processes again. Activating each data pipeline triggers the ETL steps defined for that functional area—extracting from source systems, transforming as required, and loading into the warehouse. Once these pipelines are enabled, they will begin or resume loading data according to their schedules or manual runs, effectively repopulating the warehouse with current information.

Rebuilding data models from scratch isn’t necessary because the warehouse structure is already in place, and the data loads are driven by the pipelines. Restoring from backups would bring back data from a prior state, not re-ingest fresh data through the defined processes. Reinstalling the tool wouldn’t populate data either; it merely reinstalls the software, not the data loads.