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Data Warehousing Interview Questions and Answers

1
What is Data warehousing?

A data warehouse can be considered as a storage area where interest specific or relevant data........

2
What is Business Intelligence?

Business Intelligence is also known as DSS – Decision support system which refers to the technologies, application and practices for the collection, integration and analysis of the business related information or data. Even, it helps to see the data on the information itself.

3
A goal of data mining includes which of the following?

To explain some observed event or condition

4
What are fact tables and dimension tables?

As mentioned, data in a warehouse comes from the transactions. Fact table in a data warehouse consists........

5
What is ODS?

ODS is abbreviated as Operational Data Store and it is a repository of real time operational data rather than long term trend data.

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