Question

Where is the source data extracted into after the extraction function in the staging area?

a.

Data warehouse

b.

Legacy platform

c.

Separate physical environment

d.

Source systems

Posted under Data Warehousing and OLAP

Answer: (c).Separate physical environment Explanation:Source data is often extracted into a separate physical environment, such as flat files or a data-staging relational database, before being moved to the data warehouse.

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