Big Data: Architectures And Data Analytics Exam Paper Page 4
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4A. Select the list of expensive never-sold books. Specifically, the application must select
the bookids of the “expensive never-sold” books, based on the definition reported
above, and store the bookids of the selected books in an HDFS folder. The application
must also print the total number of “expensive never-sold” books on the standard
output. The name of the output folder is one argument of the application.
B. Select the customers with a propensity for cheap purchases. Specifically, the
application must select the “customers with a propensity for cheap purchases”, based
on the definition reported above, and store the customerids of the selected customers
in an HDFS folder. The name of the output folder is one argument of the application.
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