Database Processing for BIS Business Intelligence (BI) systems do not obtain their data by which of the following means? Process extracts from operational databases Process data purchased from data vendors Read and process data from an operational database Process transactions Process extracts from operational databases Process data purchased from data vendors Read and process data from an operational database Process transactions ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS The "curse of dimensionality" relates to which problem of using operational data for BI reporting? Non-integrated data Too much data Inconsistent data Dirty data Non-integrated data Too much data Inconsistent data Dirty data ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS Which of the following are not done by Business Intelligence (BI) systems? Process and record transactions only Neither of the above is correct. Both of the above are correct. Analyze past and current activities only Process and record transactions only Neither of the above is correct. Both of the above are correct. Analyze past and current activities only ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS Data Mining uses simple arithmetic techniques such as sums, averages, and groupings to perform what-if analyses, to make predictions, and to facilitate decision making. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS Data warehouse data are usually normalized. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Processing for BIS Which of the following is an unsupervised data mining technique? Regression Analysis only Both Regression Analysis and RFM Analysis RFM Analysis only Cluster analysis only Regression Analysis only Both Regression Analysis and RFM Analysis RFM Analysis only Cluster analysis only ANSWER DOWNLOAD EXAMIANS APP
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