Which of the following is not a data source to a data warehouse?
A) ERP
B) legacy
C) POS
D) ETL

Question

Quizplus · Accepted Answer

ETL stands for Extract, Transform, and Load which is a process used to extract data from various sources, transform the data to fit the needs of the data warehouse, and then load the data into the data warehouse. ETL is not a data source itself but rather a process of extracting, transforming, and loading data from other sources such as ERP, legacy, POS, etc. Therefore, D is the correct answer as it is not a data source but rather a process used to integrate data from various sources into a data warehouse.

Which of the Following Is Not a Data Source to a Data