Question: What role does a data mart play in a data warehousing environment?

Options:

1. It serves as a backup for the data warehouse
2. It is a subset of the data warehouse focused on a specific business area
3. It is used for data extraction only
4. It combines data from multiple data warehouses

Correct Answer: It is a subset of the data warehouse focused on a specific business area

Solution:

A data mart is a subset of a data warehouse that is tailored to the needs of a specific business area or department.