MIS Chapter 9

Which of the following statements is true of a data warehouse? A) A data warehouse is larger than a data mart. B) A data warehouse functions like a retail store in a supply chain. C) Users in a data warehouse obtain data pertaining to a business function from a data mart. D) Data analysts who work with a data warehouse are experts in a particular business function

A) A data warehouse is larger than a data mart.

________ is an unsupervised data mining technique in which statistical techniques identify groups of entities that have similar characteristics. A) Cluster analysis B) Content indexing C) Regression analysis D) Cloud computing

A) Cluster analysis

________ are reports produced when something out of predefined bounds occurs. A) Exception reports B) Static reports C) Dynamic reports D) Subscription reports

A) Exception reports

________ is an open source program supported by the Apache Foundation that manages thousands of computers and that implements MapReduce. A) Hadoop B) BigData C) Linux D) Apache Wave

A) Hadoop

Which of the following statements is true of data with granularity? A) It can be too fine or too coarse and also have wrong granularity. B) If granularity is too coarse, data can be made finer by summing and combining. C) It is not possible to have a wrong granularity for a data. D) If granularity is too coarse, data can be separated into constituent parts using regression.

A) 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. A) Push publishing B) Pull publishing C) Data acquisition D) Data mining

A) Push publishing

________ are user requests for particular business intelligence results on a particular schedule or in response to particular events. A) Subscriptions B) Third-party cookies C) Static reports D) Dynamic reports

A) Subscriptions

A ________ 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 B) data room C) datasheet D) dataspace

A) data mart

The source, format, assumptions and constraints, and other facts concerning certain data are called ________. A) metadata B) data structures C) microdata D) network packets

A) metadata

Which of the following statements is true of unsupervised data mining? A) Analysts apply unsupervised data mining techniques to estimate the parameters of a developed model. B) Analysts create hypotheses only after performing an analysis. C) Regression analysis is the most commonly used unsupervised data mining technique. D) Data miners develop models prior to performing an analysis.

B) Analysts create hypotheses only after performing an analysis.

________ refers to the level of detail represented by data. A) Abstraction B) Granularity C) Dimensionality D) Aggregation

B) Granularity

Which of the following statements is true of business intelligence (BI) publishing alternatives? A) The skills required to publish static content are extremely high. B) Publishing dynamic BI is more difficult than publishing static content. C) For static content, the skill required to create a publishing application is high. D) For Web servers, push options are manual.

B) Publishing dynamic BI is more difficult than publishing static content.

________ requires users to request business intelligence results. A) Push publishing B) Pull publishing C) Data acquisition D) Data mining

B) Pull publishing

Which of the following is a fundamental category of business intelligence (BI) analysis? A) data acquisition B) reporting C) push publishing D) pull publishing

B) reporting

Which of the following refers to data in the form of rows and columns? A) granulated data B) structured data C) micro data D) coarse data

B) structured data

In the case of ________, data miners develop models prior to conducting analyses and then apply statistical techniques to data to estimate parameters of the models. A) pull publishing techniques B) supervised data mining C) push publishing techniques D) unsupervised data mining

B) supervised data mining

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? A) the free rider problem B) the curse of dimensionality C) the tragedy of the commons D) the zero-sum game

B) the curse of dimensionality

________ process operational and other data in organizations to analyze past performance and make predictions. A) Virtualization techniques B) Live migration techniques C) Business intelligence systems D) Windowing systems

C) Business intelligence systems

________ is the application of statistical techniques to find patterns and relationships among data for classification and prediction. A) Data encryption B) Data warehousing C) Data mining D) Data decryption

C) Data mining

________ techniques emerged from the combined discipline of statistics, mathematics, artificial intelligence, and machine-learning. A) Push publishing B) Pull publishing C) Data mining D) Exception reporting

C) Data mining

Which of the following statements is true of Hadoop? A) Hadoop is written in C++ and runs on Linux. B) Hadoop includes a query language called Big. C) Hadoop is an open source program that implements MapReduce. D) Technical skills are not required to run and use Hadoop.

C) Hadoop is an open source program that implements MapReduce

________ are business intelligence documents that are fixed at the time of creation and do not change. A) Critical reports B) Dynamic reports C) Static reports D) Exception reports

C) Static reports

A ________ is a facility for managing an organization's business intelligence data. A) datasheet B) dataspace C) data warehouse D) data table

C) data warehouse

Which of the following problems is particularly common for data that have been gathered over time? A) wrong granularity B) lack of integration C) lack of consistency D) missing values

C) lack of consistency

Which of the following activities in the business intelligence process involves delivering business intelligence to the knowledge workers who need it? A) data acquisition B) BI analysis C) publish results D) data mining

C) publish results

The results generated in the map phase are combined in the ________ phase. A) pig B) control C) reduce D) construct

C) reduce

The goal of ________, a type of business intelligence analysis, is to create information about past performance. A) push publishing B) data mining C) reporting analyses D) BigData

C) reporting analyses

The use of an organization's operational data as the source data for a business intelligence system is not usually recommended because it ________. A) is not possible to create reports based on operational data B) is not possible to perform business intelligence analyses on operational data C) requires considerable processing and can drastically reduce system performance D) considers only the external data and not the internal data regarding the organization's functions

C) requires considerable processing and can drastically reduce system performance

Regression analysis is used in ________. A) progress reporting B) bug reporting C) supervised data mining D) unsupervised data mining

C) supervised data mining

Which of the following statements is true of BigData? A) BigData contains only structured data. B) BigData has low velocity and is generated slowly. C) BigData cannot store graphics, audio, and video files. D) BigData refers to data sets that are at least a petabyte in size.

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

Which of the following statements is true of business intelligence (BI) systems? A) Business intelligence systems are primarily used for developing software systems and data mining applications. B) The four standard components of business intelligence systems are software, procedures, applications, and programs. C) The software component of a business intelligence system is called an intelligence database. D) Business intelligence systems analyze an organization's past performance to make predictions.

D) Business intelligence systems analyze an organization's past performance to make predictions.

________ is the process of obtaining, cleaning, organizing, relating, and cataloging source data. A) Data manipulation B) BI analysis C) Publish results D) Data acquisition

D) Data acquisition

________ reports are business intelligence documents that are updated at the time they are requested. A) Subscription B) Third-party cookie C) Static D) Dynamic

D) Dynamic

________ is used to measure the impact of a set of variables on another variable during data mining. A) Cluster analysis B) Context indexing C) Cloud computing D) Regression analysis

D) Regression analysis

________ is the process of sorting, grouping, summing, filtering, and formatting structured data. A) Push publishing B) Publish results C) Cloud computing D) Reporting analysis

D) Reporting analysis

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. A) data mart B) data center C) data room D) data warehouse

D) data warehouse

Users in a data mart obtain data that pertain to a particular business function from a ________. A) data room B) data center C) datasheet D) data warehouse

D) data warehouse

Problematic data are termed ________. A) random data B) macro data C) vague data D) dirty data

D) dirty data

The ________ of business intelligence servers maintains metadata about the authorized allocation of business intelligence results to users. A) exception report B) dynamic report C) delivery function D) management function

D) management function

In the ________ phase, a BigData collection is broken into pieces and hundreds or thousands of independent processors search these pieces for something of interest. A) crash B) break C) reduce D) map

D) map

A printed sales analysis is an example of a dynamic report. TRUE or FALSE

FALSE

An advantage of data warehouses is the low cost required to create, staff, and operate them. TRUE or FALSE

FALSE

As information systems, BI systems have three standard components. TRUE or FALSE

FALSE

BI analysis is the process of obtaining, cleaning, organizing, relating, and cataloging source data. TRUE or FALSE

FALSE

BigData has low velocity and is generated slowly. TRUE or FALSE

FALSE

Cluster analysis measures the impact of a set of variables on another variable. TRUE or FALSE

FALSE

Data marts are usually larger than data warehouses. TRUE or FALSE

FALSE

External data purchased from outside resources are not included in data warehouses TRUE or FALSE

FALSE

For dynamic content, the skills required to create a publishing application are low. TRUE or FALSE

FALSE

If the granularity of certain data is too coarse, the data can be separated into constituent parts using statistical techniques TRUE or FALSE

FALSE

Project management is one of the few domains in which business intelligence is rarely used. TRUE or FALSE

FALSE

Push publishing requires a user to request BI results. TRUE or FALSE

FALSE

Regression analysis is used to identify groups of entities that have similar characteristics. TRUE or FALSE

FALSE

Reporting analysis is used primarily for classifying and predicting BI data. TRUE or FALSE

FALSE

Static reports are business intelligence documents that are updated at the time they are requested. TRUE or FALSE

FALSE

The curse of dimensionality states that the more attributes there are, the more difficult it is to build a model that fits the sample data. TRUE or FALSE

FALSE

The granularity in clickstream data is too coarse. TRUE or FALSE

FALSE

Using BI for identifying changes in the purchasing patterns of customers is a labor-intensive process. TRUE or FALSE

FALSE

A data warehouse is a facility for managing an organization's business intelligence data. TRUE or FALSE

TRUE

BigData has volume, velocity, and variation characteristics that far exceed those of traditional reporting and data mining. TRUE or FALSE

TRUE

BigData refers to data that have great variety and may have structured data as well as different formats. TRUE or FALSE

TRUE

Business intelligence enables police departments to better utilize their personnel through predictive policing. TRUE or FALSE

TRUE

Data analysts who work with data warehouses are experts at data management, data cleaning, data transformation, and data relationships. TRUE or FALSE

TRUE

Data granularity refers to the level of detail represented by data. TRUE or FALSE

TRUE

Data inconsistencies can occur from the nature of a business activity. TRUE or FALSE

TRUE

Data marts are data collections that address the needs of a particular department or functional area of a business. TRUE or FALSE

TRUE

MapReduce is a technique for harnessing the power of thousands of computers working in parallel. TRUE or FALSE

TRUE

Placing BI applications on operational servers can dramatically reduce system performance. TRUE or FALSE

TRUE

Push options are manual when emails or collaboration tools are used for BI publishing. TRUE or FALSE

TRUE

Structured data is data in the form of rows and columns. TRUE or FALSE

TRUE

The data that an organization purchases from data vendors can act as the source data for a business intelligence system. TRUE or FALSE

TRUE

The management function of BI servers maintains metadata about the authorized allocation of BI results to users. TRUE or FALSE

TRUE

The patterns, relationships, and trends identified by BI systems are called business intelligence. TRUE or FALSE

TRUE

The three fundamental categories of BI analysis are reporting, data mining, and BigData. TRUE or FALSE

TRUE

Users in a data mart obtain data that pertain to a particular business function from a data warehouse. TRUE or FALSE

TRUE

With unsupervised data mining, analysts do not create a model or hypothesis before running the analysis. TRUE or FALSE

TRUE