Data Warehousing part 1.docx

Data Warehousing part 1.docx - Data Warehousing General...

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Data Warehousing - General Questions 1. Data scrubbing is which of the following? A . A process to reject data from the data warehouse and to create the necessary indexes B . A process to load the data in the data warehouse and to create the necessary indexes C . A process to upgrade the quality of data after it is moved into a data warehouse D . A process to upgrade the quality of data before it is moved into a data warehouse 2. The @active data warehouse architecture includes which of the following? A . At least one data mart B . Data that can extracted from numerous internal and external sources C . Near real-time updates D . All of the above. 3. A goal of data mining includes which of the following? A . To explain some observed event or condition B . To confirm that data exists
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