DATA WAREHOUSING QUIZ

True

False

False

True

Data in which changes to existing records cause the previous version of the records to be eliminated

Data in which changes to existing records do not cause the previous version of the records to be eliminated

Data that are never deleted once they have been added

Data that are never altered or deleted once they have been added

Current data intended to be the single source for all decision support systems.

Data stored in one operational system in the organization.

Data that has been selected and formatted for end-user support applications.

Data stored in the various operational systems throughout the organization.

A system that is used to run the business in real time and is based on historical data.

A system that is used to run the business in real time and is based on current data.

A system that is used to support decision making and is based on current data.

A system that is used to support decision making and is based on historical data.

True

False

False

True

A process to load the data in the data warehouse and to create the necessary indexes

A process to reject data from the data warehouse and to create the necessary indexes

A process to upgrade the quality of data before it is moved into a data warehouse

A process to upgrade the quality of data after it is moved into a data warehouse

Joining data from one source into various sources of data

A process to change data from a summary level to a detailed level

Separating data from one source into various sources of data

A process to change data from a detailed level to a summary level

False

True