Question

A data mart usually can be constructed more rapidly and at a 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.

Answer 1

A data mart can be constructed more rapidly and at a lower cost than a data warehouse due to its focus on a single subject area or line of business, and the use of a web interface.

Step-by-step explanation:

A data mart usually can be constructed more rapidly and at a lower cost than a data warehouse because it typically focuses on a single subject area or line of business (SEO keyword: single subject area). While a data warehouse is designed to store and analyze large amounts of historical data, a data mart is a smaller subset of that data, specifically tailored to the needs of a particular department or group within an organization.

This focused approach allows for quicker implementation and cost savings compared to the broader scope of a data warehouse. Additionally, the use of a web interface (SEO keyword: web interface) can provide easy access to the data mart for users, further enhancing its efficiency and usability.