DATA WAREHOUSING QUIZ

At least one data mart

Data that can extracted from numerous internal and external sources

All of these

Near real-time updates

Separating data from one source into various sources of data

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

Joining data from one source into various sources of data

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

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 altered or deleted once they have been added

Data that are never deleted once they have been added

True

False

Converts data from one field into multiple fields

Converts data from multiple fields into one field

All of these

Converts data from multiple fields into multiple fields

False

True

False

True

False

True

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

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

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

To explain some observed event or condition

To confirm that data exists

To analyze data for expected relationships

To create a new data warehouse