Question

Which of the following statements is true of data marts and data warehouses?

 

a. Access to data is often slower in data marts than in data warehouses because data marts are smaller.

b. Despite being smaller, data marts can usually perform the same type of analysis as data warehouses.

c. Data marts have a much more extended scope than data warehouses.

d. Consolidating information from all of the departments is done in data marts and only 1 department's data is found data warehouses.