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Database Processing for BIS

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

Non-duplicated data
Non-integrated data
Dirty data
Missing values

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Database Processing for BIS
The reports generated by a reporting system are usually not delivered in which of the following media?

Digital dashboard
Web portal
E-Mail
Commercial courier service

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

False
True

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Database Processing for BIS
A BI reporting system does not ________ .

create meaningful information
use disparate data sources
deliver information to users on a timely basis
use statistical procedures to predict future events

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Database Processing for BIS
We have Market Basket data for 1,000 rental transactions at a Video Store. There are for videos for rent -- Video A, Video B, Video C and Video D. The probability that both Video C and Video D are rented at the same time is known as ________ .

the basic probability
lift
confidence
support

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Database Processing for BIS
RFM analysis uses customer's purchasing patterns to ________ .

predict future sales using regression techniques
record transactions
perform OLAP
analyze and rank customers

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