When Does Information Cleansing Occur in the Data Warehouse

question 37

Multiple Choice

When does information cleansing occur in the data warehouse?

• A) During the ETL process.
• B) On the information, once it is in the data warehouse.
• C) During the ETL process and once it is in the data warehouse.
• D) During the ETL process and before it is in the data warehouse.

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Definitions:

NK Cell Activity

The functions performed by natural killer cells, a type of white blood cell, involved in the body's innate immune response against tumors and viral infections.

Lymphocyte Proliferation

The rapid multiplication or increase in the number of lymphocytes, a type of white blood cell, often in response to infections or diseases.

Monocyte Migration

The process by which monocytes, a type of white blood cell, move from the bloodstream into tissues, where they become macrophages that ingest and destroy pathogens and dead cells.

Humor

In a medical context, one of the fluids historically believed to be responsible for human health and temperament; in a general sense, the quality of being amusing.