A data mart usually can be constructed more rapidly and at lower cost than a data warehouse because
A) a data mart typically focuses on a single subject area or line of business.
B) all the information is historical.
C) a data mart uses a Web interface.
D) all of the information belongs to a single company.

Question

Quizplus · Accepted Answer

A data mart is typically designed to serve a single department or business unit, and therefore focuses on a particular subject area. This means that it requires fewer resources to develop and implement compared to a data warehouse, which serves the entire organization and covers a broad range of subject areas. A data mart can often be built more rapidly and at a lower cost than a full-scale data warehouse.

A Data Mart Usually Can Be Constructed More Rapidly and at Lower