ETL $($extract$,$ transform, load$)$ processes:

Group of answer choices

Take data from a transaction processing system and$/$or external sources and make sure that the data is accurate before loading it into a data warehouse.

Can contain sophisticated algorithms to evaluate the integrity of the data and correct problems.

Are often supported by software packages that can be purchased from a software company.

Assist with data integration from a variety of external sources.

All of the above are true about ETL processes.