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Database Processing for BIS

Database Processing for BIS
In OLAP, we are interested in ________ .

measures only
dimensions only
levels only
measures and dimensions

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Database Processing for BIS
OLAP uses measures, dimensions and associations.

False
True

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Database Processing for BIS
One popular classification technique in Business Intelligence (BI) reporting is ________ .

both cluster analysis and regression analysis
cluster analysis only
regression analysis only
RFM analysis only

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Database Processing for BIS
We have Market Basket data for 1,000 rental transactions at a Video Store. There are four videos for rent -- Video A, Video B, Video C and Video D. The probability that Video D will be rented given that Video C has been rented is known as ________ .

lift
support
confidence
the basic probability

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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 ________ .

dirty data
inconsistent data
a "wrong format" problem
non-integrated data

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Database Processing for BIS
A data warehouse is a database system that is optimized for operational transaction processing.

False
True

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