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BCIS Chapter9

Refers to the level of detail represented by data
Granularity
Which of the following refers to data in the form of rows and columns?
Structure data
Are user requests for particular business intelligence results on a particular schedule or in response to particular events.
Subscriptions
Which of the following problems is particularly common for data that have been gathered over time?
Lack of consistency
Which of the following statements is true of data with granularity?
It can be too fine or too coarse and also have wrong granularity
Is the process of delivering business intelligence to users without any request from the users.
Push publishing
Is a facility for managing an organization’s business intelligence data
Data warehouse
Process of operational and other data in organizations to analyze past performance and make predictions
Business intelligence systems
Is used to measure the impact of a set of variables on another variable during data mining
Regression analysis
Requires users to request business intelligence results
Pull publishing
Which of the following statements is true of unsupervised data mining?
Analysts create hypotheses only after performing an analysis
Of business intelligence servers maintains metadata about the authorized allocation of business intelligence results to users
The management function
phase, a BigData collection is broken into pieces and hundreds or thousands of independent processors search these pieces for something of interest
In the map
Is the application of statistical techniques to find patterns and relationships among data for classification and prediction
Data mining
A type of business intelligence analysis, is to create information about past performance
The goal of reporting analyses
Is designed to extract data from operational systems and other sources, clean the data, and store and catalog that data for processing by business intelligence tools
data warehouse
Users in a data mart that obtain data that pertain to a particular business function from a
Data warehouse
Which of the following activities in the business intelligence process involves delivering business intelligence to the knowledge workers who need it?
Publish results
Is the process of obtaining, cleaning, organizing, relating, and cataloging source data
Data acquisition
Reports are business intelligence documents that are updated at the time they are requested
Dynamic
Is a data collection, smaller than the data warehouse that addresses the needs of a particular department or functional area of a business
A data mart
Which of the following statements is true of business intelligence (BI) systems?
Business intelligence systems analyze an organization’s past performance to make predictions
Which of the following is a fundamental category of business intelligence (BI) analysis?
Reporting
Data miners develop models prior to conducting analyses and then apply statistical techniques to data to estimate parameters of the models.
In the case of supervised data mining
Is an unsupervised data mining technique in which statistical techniques identify groups of entities that have similar characteristics
Cluster analysis
Which of the following statements is true of a data warehouse?
A data warehouse is larger than a data mart.
Are reports produced when something out of predefined bounds occurs.
Exception reports
Techniques emerged from the combined discipline of statistics, mathematics, artificial intelligence, and machine-learning
Data mining
Which of the following statements is true of business intelligence (BI) publishing alternatives?
Publishing dynamic BI is more difficult than publishing static content
Which of the following is true of BigData?
BigData refers to data sets that are at least a petabyte in size
The results generated in the map phase are combined in the
reduce phase
Are business intelligence documents that are fixed at the time of creation and do not change
Static reports
The use of an organization’s operational data as the source data for a business intelligence system is not usually recommended because it
requires considerable processing and can drastically reduce system performance
Is an open source program supported by the Apache Foundation that manages thousands of computers and that implements MapReduce
Hadoop
Is the process of sorting, grouping, summing, filtering, and formatting structure data
Reporting analysis
The more attributes there are in a sample data, the easier it is to build a model that fits the sample data, but that is worthless as a predictor. Which of the following best explains this phenomenon?
the curse of dimensionality
Regression analysis is used in
supervised data mining
Which of the following statements is true of Hadoop?
Hadoop is an open source program that implements MapReduce
Problematic data are termed
dirty data
The source, format, assumptions and constraints, and other facts concerning certain data are called
metadata

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