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Question

How is data transferred from operational systems to the data warehouse?

a.

Data is directly moved from operational systems to the data warehouse.

b.

Data is sent to a data staging area for cleansing and transformation before being placed in the data warehouse.

c.

Data is extracted and sent to an intermediary server for storage.

d.

Data is converted into printed reports and manually entered into the data warehouse.

Answer: (b).Data is sent to a data staging area for cleansing and transformation before being placed in the data warehouse. Explanation:Data is sent to a data staging area for cleansing and transformation before being placed in the data warehouse.

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Q. How is data transferred from operational systems to the data warehouse?

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