Database Processing for BIS Data warehouse data are usually normalized. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS Which of the following is not a reason that operational data are difficult to read? Dirty data Missing values Non-integrated data Non-duplicated data Dirty data Missing values Non-integrated data Non-duplicated data ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS We have been given access to the company's operational data, and have been asked to produce a report. We discover that some of the data we need are in an SQL server database while other needed data are in a separate Oracle database. This is an example of ________ . a "wrong format" problem dirty data inconsistent data non-integrated data a "wrong format" problem dirty data inconsistent data non-integrated data ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS In OLAP, we are interested in ________ . dimensions only measures only measures and dimensions levels only dimensions only measures only measures and dimensions levels only ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS BI reporting systems summarize the current status of business activities in order to predict future activities. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS In unsupervised data mining, explanations are created after patterns are found. False True False True ANSWER DOWNLOAD EXAMIANS APP
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