Data Warehousing
The extract process is which of the following?

Capturing all of the data contained in various operational systems
Capturing all of the data contained in various decision support systems
Capturing a subset of the data contained in various decision support systems
Capturing a subset of the data contained in various operational systems

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Data Warehousing
Data scrubbing is which of the following?

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

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Data Warehousing
An operational system is which of the following?

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

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Data Warehousing
Reconciled data is which of the following?

Data that has been selected and formatted for end-user support applications.
Current data intended to be the single source for all decision support systems.
Data stored in the various operational systems throughout the organization.
Data stored in one operational system in the organization.

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