Question

What should you assume when dealing with data from disparate legacy systems in a data warehouse?

a.

Assume the source data is always clean and accurate.

b.

Assume the data corruption is not a problem.

c.

Assume the source data is likely to be corrupt.

d.

Assume data cleansing is not required.

Posted under Data Warehousing and OLAP

Answer: (c).Assume the source data is likely to be corrupt. Explanation:When dealing with data from disparate legacy systems, it is wise to assume that the source data is likely to be corrupt.

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Q. What should you assume when dealing with data from disparate legacy systems in a data warehouse?

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