DATABASE PROCESSING FOR BIS QUIZ

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

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Data mining applications are used accomplish which of the following tasks?

Do what-if analysis only

Process transactions only

Do RFM analysis only

Do both RFM and what-if analysis

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Business Intelligence (BI) reporting systems cannot do which of the following operations?

Filter data

Both filter and group data

Modify data

Group data

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Business Intelligence (BI) systems do not obtain data from operational databases.

True

False

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Which of the following is not a component of a data warehouse?

Data extraction/cleaning/preparation programs

Data warehouse data

None of these

Data metadata

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OLAP uses measures, dimensions and associations.

False

True

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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

Process transactions

Read and process data from an operational database

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In a common form of RFM analysis, customers are sorted in five groups and given a score of 1 to 5 depending on their group.

False

True

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Which of the following is not a reason that operational data are difficult to read?

Dirty data

Missing values

Non-duplicated data

Non-integrated data

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One popular classification technique in Business Intelligence (BI) reporting is ________ .

regression analysis only

cluster analysis only

both cluster analysis and regression analysis

RFM analysis only

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