A star schema has what type of relationship between a dimension and fact table?
Transient data is which of the following?
A goal of data mining includes which of the following?
Data scrubbing can help upgrade data quality; it is not a long-term solution to the data quality problem.
Every key used to join the fact table with a dimensional table should be a surrogate key.
Data in the data warehouse are loaded and refreshed from operational systems.
Star schema is suited to online transaction processing, and therefore is generally used in operational systems, operational data stores, or an EDW.
Data in operational systems are typically fragmented and inconsistent.
A multifield transformation does which of the following?
An operational system is which of the following?
A data warehouse is which of the following?
Derived data are detailed, current data intended to be the single, authoritative source for all decision support applications.
Periodic data are data that are physically altered once added to the store.
Most operational systems are based on the use of transient data.
Independent data marts are often created because an organization focuses on a series of short-term business objectives.
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