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Question
Recalculation of hash totals is an example of aa. completeness test
b. redundancy test
c. both a. and b.
d. neither a. nor b.
Answer
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Separating the data warehouse from the operations databases occurs for all of the following reasons except
a. to make the management of the databases more economical
b. to increase the efficiency of data mining processes
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d. to permit the integration of data from diverse sources
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Legacy systems are
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