32) Users in a data mart obtain data that pertain to a particular business function from a ________.
A) data room
B) data center
C) datasheet
D) data warehouse
33) Which of the following statements is true of a data warehouse?
A) A data warehouse is larger than a data mart.
B) A data warehouse functions like a retail store in a supply chain.
C) Users in a data warehouse obtain data pertaining to a business function from a data mart.
D) Data analysts who work with a data warehouse are experts in a particular business function.
34) A data warehouse is a facility for managing an organization's business intelligence data.
35) External data purchased from outside resources are not included in data warehouses.
36) Placing BI applications on operational servers can dramatically reduce system performance.
37) Data inconsistencies can occur from the nature of a business activity.
38) Data granularity refers to the level of detail represented by data.
39) The granularity in clickstream data is too coarse.
40) If the granularity of certain data is too coarse, the data can be separated into constituent parts using statistical techniques.
41) The curse of dimensionality states that the more attributes there are, the more difficult it is to build a model that fits the sample data.