Question

Which of the following describes a "Data Warehouse"?

• A. A location where physical data is stored
• B. A system used to store and analyse large volumes of business data
• C. A repository for creating presentations
• D. A device for storing backup copies of business files

Answer 1

The Correct Option is B

A Data Warehouse is a system used by organizations to collect, store, and analyze large volumes of data from different sources. It helps businesses make informed decisions by providing historical and consolidated data for reporting and analysis.

Let us examine each option:

Option (1): A location where physical data is stored
This describes general storage (like a physical or file storage system), not a data warehouse.

Option (2): A system used to store and analyse large volumes of business data
A data warehouse is specifically designed for storing and analyzing large amounts of structured business data.
Therefore, this is the correct answer.

Option (3): A repository for creating presentations
This is unrelated to data warehousing. Presentations are created using tools like PowerPoint.

Option (4): A device for storing backup copies of business files
This refers to backup storage systems, not a data warehouse.

Therefore, a Data Warehouse is: \[ \boxed{\text{A system used to store and analyse large volumes of business data}} \] Hence, the correct answer is Option (2) – A system used to store and analyse large volumes of business data.