question

______ process operational and other data in organizations to analyze past performance and make predictions.

answer

Business intelligence systems

question

Which of the following statements is true of business intelligence (BI) systems?

answer

Business intelligence systems analyze an organizations past performance to make predictions

question

True/ False The data that an organization purchases from data vendors can act as the source data for a business intelligence system.

answer

TRUE

question

True/ False Project management is one of the few domains in which business intelligence is rarely used.

answer

FALSE

question

True/ False Using BI for identifying changes in the purchasing patterns of customers is a labor- intensive process.

answer

FALSE

question

True/ False Business intelligence enables police departments to better utilize their personnel through predictive policing.

answer

TRUE

question

______ is the process of obtaining, cleaning, organizing, relating, and cataloging source data.

answer

data acquisition

question

_______ requires users to request business intelligence results

answer

pull publishing

question

Which of the following is a fundamental category of business intelligence (BI) analysis?

answer

data acquisition

question

Which of the following activities in the business intelligence process involves delivering business intelligence to the knowledge workers who need it?

answer

publish results

question

_____ is the process of delivering business intelligence to users without any request from the users.

answer

Push publishing

question

True/ False BI analysis is the process of obtaining, cleaning, organizing, relating , and cataloging source data.

answer

FALSE

question

True/ False The three fundamental categories of BI analysis are reporting, data mining, and BigData.

answer

TRUE

question

True/ False Push publishing requires a user to request BI results.

answer

FALSE

question

The use of an organizations operational data as the source data for a business intelligence system is not usually recommended because it _______.

answer

requires considerable processing and can drastically reduce system performance

question

A _____ is a facility for managing an organizations business intelligence data

answer

data warehouse

question

The source, format. assumptions and constraints, and other facts concerning certain data are called _______.

answer

metadata

question

Problematic data are termed ______.

answer

dirty data

question

Which of the following problems is particularly common for data that have been gathered over time?

answer

lack of consistency

question

_______ refers to the level of detail represented by data.

answer

Granularity

question

Which of the following statements is true of data with granularity?

answer

If granularity is too coarse, data can be made finer by summing and combining.

question

The more attributes there are in a sample data, the easier it is to built a model that fits the sample data, but that is worthless as a predictor. Which of the following best explains this phenomenon?

answer

the curse of dimensionality.

question

A ______ is a data collection, smaller than the data warehouse that addresses the needs of a particular department or functional are of a business.

answer

data mart

question

A ______ 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.

answer

data warehouse

question

Users in a data mart obtain data that pertain to a particular business function from ______.

answer

data warehouse

question

Which of the following statements is true of a data warehouse?

answer

A data warehouse is larger than a data mart

question

True/ False A data warehouse is a facility for managing an organizations business intelligence data.

answer

TRUE

question

True/ False External data purchased from outside resources are not included in data warehouses

answer

FALSE

question

True/ False Placing BI application on operational servers can dramatically reduce system performance

answer

TRUE

question

True/ False Data inconsistencies can occur from the nature of a business activity

answer

TRUE

question

True/ False Data granularity refers to the level of detail represented by data

answer

TRUE

question

True/ False If the granularity of certain data is too coarse, the data can be separated into constituent parts using statistical techniques

answer

FALSE

question

True/ False The curse of dimensionality states that he more attributes there are, the more difficult it is to build a model that fits the sample data.

answer

FALSE

question

True/ False Data marts are data collections that address the needs of a particular department or functional area of a business

answer

TRUE

question

True/ False Data marts are usually larger than data warehouses

answer

FALSE

question

True/ False Data analyst who work with data warehouses are experts at data management, data cleaning, data transformation, and data relationships

answer

FALSE

question

True/ False Users in a data mart obtain data that pertain to a particular business function fro ma data warehouse

answer

TRUE

question

True/ False An advantage of data warehouses is the low cost required to create, staff, and operate them.

answer

FALSE

question

_____ is the process of sorting, grouping, summing, filtering, and formatting structured data.

answer

Reporting analysis

question

Which of the following refers to data in the form of rows and columns?

answer

structured data

question

The goal of ______, a type of business intelligence analysis, is to create information about past performance.

answer

reporting analyses.

question

_____ are reports produced when something out of predefined bounds occurs.

answer

Exception reports

question

______ is the application of statistical techniques to find patterns and relationships among data for classification and prediction.

answer

Data mining

question

______ techniques emerged from the combined discipline of statistics, mathematics, artificial intelligence, and machine- learning.

answer

Data mining

question

Which of the following statement is true of unsupervised data mining?

answer

Analysts create hypotheses only after performing an analysis

question

_______ is an unsupervised data mining technique in which statistical techniques identify groups of entities that have similar characteristics.

answer

Cluster analysis

question

In the case of _____, data miner develop models prior to conducting analyses and then apply statistical techniques to data to estimate parameters of the models.

answer

supervised data mining

question

Regression analysis is used in _______.

answer

supervised data mining

question

__________ is used to measure the impact of a set of variables of another variable during data mining

answer

Regression analysis

question

Which of the following statements is true of BigData?

answer

BigData refers to data sets that are at least petabyte in size.

question

True/ False Reporting analysis is used primarily for classifying and predicting BU data

answer

TRUE

question

True/ False Structured data is data in the form of rows and columns

answer

TRUE

question

True/ False With unsupervised data mining, analysts do not create a model or hypothesis before running the analysis.

answer

TRUE

question

True/ False Regression analysis is used to identify groups of entities that have similar characteristics

answer

FALSE

question

True/ False Cluster analysis measures the impact of a set of variables on another variable.

answer

FALSE

question

True/ False BigData refers to data that have great variety and may have structured data as well as different formats

answer

TRUE

question

True/ False Bigdata has low velocity and is generated slowly.

answer

FALSE

question

True/ False BigData has volume, velocity, and variation characteristics that far exceed those of traditional reporting and data mining

answer

TRUE

question

______ are business intelligence documents that are fixed at the time of creation and do not change.

answer

Static reports

question

_______ reports are business intelligence documents that are updated at the time they are requested.

answer

Dynamic

question

________ are user requests for particular business intelligence results on a particular schedule or in response to particular events.

answer

Subscriptions

question

Which of the following statements is true of business intelligence (BI) publishing alternatives?

answer

Publishing dynamic BI is more difficult than publishing static content

question

The _______ of business intelligence server maintains metadata about the authorized allocation of business intelligence results to users.

answer

management function

question

True/ False Static reports are business intelligence documents that are updated at the time they are requested.

answer

FALSE

question

True/ False A printed sales analysis is an example of dynamic report.

answer

TRUE

question

True/ False For dynamic content, the skills required to cerate a publishing application are low

answer

FALSE

question

True/ False The management function of BI server maintains metadata about the authorized allocation of BI results to users.

answer

TRUE

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