A BI reporting system does not ________ .
A. create meaningful information
B. deliver information to users on a timely basis
C. use statistical procedures to predict future events
D. use disparate data sources
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Which of the following are not done by Business Intelligence (BI) systems?
A. Analyze past and current activities only
B. Process and record transactions only
C. Both of the above are correct.
D. Neither of the above is correct.
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Business Intelligence (BI) systems do not obtain their data by which of the following means?
A. Read and process data from an operational database
B. Process transactions
C. Process extracts from operational databases
D. Process data purchased from data vendors
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The "curse of dimensionality" relates to which problem of using operational data for BI reporting?
A. Dirty data
B. Inconsistent data
C. Too much data
D. Non-integrated data
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A report generated by a reporting system is delivered to the appropriate users via a user-accessed Web site. This system uses which of the following report modes?
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RFM analysis uses customer's purchasing patterns to ________ .
A. record transactions
B. analyze and rank customers
C. predict future sales using regression techniques
D. perform OLAP
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The "F" in RFM analysis stands for ________ .
A. frequently
B. freshness
C. fast food
D. fantasy
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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 ________ .
A. the basic probability
B. support
C. lift
D. confidence
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Business Intelligence (BI) reporting systems cannot do which of the following operations?
A. Filter data
B. Group data
C. Modify data
D. Both filter and group data
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Which of the following is not a component of a data warehouse?
A. Data extraction/cleaning/preparation programs
B. Data warehouse data
C. Data metadata
D. None of the above are data warehouse components.
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Business Intelligence (BI) reporting analyses can be performed using ________ .
A. standard SQL only
B. extensions to SQL only
C. OLAP only
D. both standard SQL and extensions to SQL
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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. dirty data
B. inconsistent data
C. non-integrated data
D. a "wrong format" problem
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The reports generated by a reporting system are usually not delivered in which of the following media?
A. Web portal
B. Commercial courier service
C. Digital dashboard
D. E-Mail
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Data mining applications are used accomplish which of the following tasks?
A. Process transactions only
B. Do RFM analysis only
C. Do what-if analysis only
D. Do both RFM and what-if analysis
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Which of the following is an unsupervised data mining technique?
A. Cluster analysis only
B. Regression Analysis only
C. RFM Analysis only
D. Both Regression Analysis and RFM Analysis
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In OLAP, we are interested in ________ .
A. levels only
B. dimensions only
C. measures only
D. measures and dimensions
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Which of the following is not a reason that operational data are difficult to read?
A. Non-duplicated data
B. Dirty data
C. Missing values
D. Non-integrated data
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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 ________ .
A. the basic probability
B. support
C. lift
D. confidence
Select an option to see the answer and solution.
One popular classification technique in Business Intelligence (BI) reporting is ________ .
A. cluster analysis only
B. regression analysis only
C. RFM analysis only
D. both cluster analysis and regression analysis
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We have done an RFM analysis on our customer data. Mary Jones has a score of "1 1 5". This series means that Mary ________ .
A. Has ordered recently, orders frequently, and places a large order when she orders.
B. Hasn't ordered recently, orders infrequently, but places a large order when she orders.
C. Has ordered recently, orders frequently, but doesn't place a large order when she orders
D. Hasn't ordered recently, orders infrequently, and doesn't place a large order when she orders.
Select an option to see the answer and solution.