Question 1

It is better to have data that is too fine than too coarse because fine data can be converted to coarse data by

Accepted Answer

A)  separating the data into its constituent parts. 
B)  using regression analysis. 
C)  placing the data into a data mart. 
D)  summing and combining the data. 
E)  placing the data into a data warehouse. 
A)  separating the data into its constituent parts. 
B)  using regression analysis. 
C)  placing the data into a data mart. 
D)  summing and combining the data. 
E)  placing the data into a data warehouse. D

Question 2

Your local burger joint wants to reap the benefits of improved decision making by using its sales data.In order to do this,it must

Accepted Answer

A)  use reporting systems as part of its complete information systems. 
B)  incorporate data-mining products as part of its complete information systems. 
C)  follow best practices and adopt an ERP. 
D)  adopt an expert system into its existing information system. 
E)  adopt knowledge management systems into its existing information system. 
A)  use reporting systems as part of its complete information systems. 
B)  incorporate data-mining products as part of its complete information systems. 
C)  follow best practices and adopt an ERP. 
D)  adopt an expert system into its existing information system. 
E)  adopt knowledge management systems into its existing information system. B

Question 3

Which of the following is an assumption about information systems that Ackoff disputed?

Accepted Answer

A)  There is too much uncertainty in making any decision. 
B)  Decisions are poor because managers lack relevant information. 
C)  Computer speed doubles every 18 months. 
D)  There is too much information. 
E)  Mangers suffer from a lack of perfect data. 
A)  There is too much uncertainty in making any decision. 
B)  Decisions are poor because managers lack relevant information. 
C)  Computer speed doubles every 18 months. 
D)  There is too much information. 
E)  Mangers suffer from a lack of perfect data. B

Question 4

Regression analysis measures the impact of a set of variables on another variable.

Accepted Answer

A) True 
 B)False

Question 5

________ is a problem that occurs when data-mining is used to create overly complex models that are not suited to making accurate predictions.

Accepted Answer

A)  Inconsistent data 
B)  Overfitting 
C)  Model degradation 
D)  Dirty data 
E)  Clean data 
A)  Inconsistent data 
B)  Overfitting 
C)  Model degradation 
D)  Dirty data 
E)  Clean data

Question 6

With ________,analysts do not create a model or hypothesis before running the analysis.Instead,they apply the data-mining technique to the data and observe the results.

Accepted Answer

A)  regression analysis 
B)  supervised data mining 
C)  neural networks 
D)  cluster analysis 
E)  unsupervised data mining 
A)  regression analysis 
B)  supervised data mining 
C)  neural networks 
D)  cluster analysis 
E)  unsupervised data mining

Question 7

What is supervised data mining?

Accepted Answer

In supervised data mining,data miners de

Question 8

Systems that focus on making data collected in OLTP to support decision making are often referred to as decision support systems.

Accepted Answer

A) True 
 B)False

Question 9

What is a data mart?

Accepted Answer

A data mart is a data collecti

Question 10

What is the purpose of business intelligence? What kind of BI tools are there?

Accepted Answer

Business intelligence (BI)is a category

Question 11

The decision to use batch or real time processing should depend upon

Accepted Answer

A)  the nature of the transactions and the needs of the organization. 
B)  the nature of the transactions. 
C)  the needs to the organization. 
D)  the existing infrastructure of the organization. 
E)  the needs to the organization and the existing infrastructure of the organization. 
A)  the nature of the transactions and the needs of the organization. 
B)  the nature of the transactions. 
C)  the needs to the organization. 
D)  the existing infrastructure of the organization. 
E)  the needs to the organization and the existing infrastructure of the organization.

Question 12

Problematic data are termed missing values.

Accepted Answer

A) True 
 B)False

Question 13

The purpose of (a)________ is to extract and clean data from operational systems and other sources.

Accepted Answer

A)  cluster analysis 
B)  data mart 
C)  data warehouse 
D)  regression analysis 
E)  data mining 
A)  cluster analysis 
B)  data mart 
C)  data warehouse 
D)  regression analysis 
E)  data mining

Question 14

Reporting systems are programs that read data from a variety of sources,process that data,produce and deliver formatted reports to users.

Accepted Answer

A) True 
 B)False

Question 15

Problematic data are termed dirty data.

Accepted Answer

A) True 
 B)False

Question 16

Experts systems encapsulate knowledge and use if/then rules to support decisions.

Accepted Answer

A) True 
 B)False

Question 17

The total amount of data generated by 2010 is estimated to be

Accepted Answer

A)  330 petabytes. 
B)  3.3 zettabytes. 
C)  33 petabytes. 
D)  3.3 exabytes. 
E)  0.33 yottabytes. 
A)  330 petabytes. 
B)  3.3 zettabytes. 
C)  33 petabytes. 
D)  3.3 exabytes. 
E)  0.33 yottabytes.

Question 18

If transactions are entered and processed immediately upon entry,then the system is operating in

Accepted Answer

A)  transaction time. 
B)  batch mode. 
C)  unprotected mode. 
D)  online mode. 
E)  real time. 
A)  transaction time. 
B)  batch mode. 
C)  unprotected mode. 
D)  online mode. 
E)  real time.

Question 19

In 2002,a total of ________ petabytes of new data were created.

Accepted Answer

A)  304 
B)  330 
C)  3.3 
D)  403 
E)  430 
A)  304 
B)  330 
C)  3.3 
D)  403 
E)  430

Question 20

Data-mining systems use heuristic techniques to process data to find hidden patterns and relationships among the data.

Accepted Answer

A) True 
 B)False

It is better to have data that is too fine than too coarse because fine data can be converted to coarse data by

Your local burger joint wants to reap the benefits of improved decision making by using its sales data.In order to do this,it must

Which of the following is an assumption about information systems that Ackoff disputed?

Regression analysis measures the impact of a set of variables on another variable.

________ is a problem that occurs when data-mining is used to create overly complex models that are not suited to making accurate predictions.

With ________,analysts do not create a model or hypothesis before running the analysis.Instead,they apply the data-mining technique to the data and observe the results.

What is supervised data mining?

Systems that focus on making data collected in OLTP to support decision making are often referred to as decision support systems.

What is a data mart?

What is the purpose of business intelligence? What kind of BI tools are there?

The decision to use batch or real time processing should depend upon

Problematic data are termed missing values.

The purpose of (a)________ is to extract and clean data from operational systems and other sources.

Reporting systems are programs that read data from a variety of sources,process that data,produce and deliver formatted reports to users.

Problematic data are termed dirty data.

Experts systems encapsulate knowledge and use if/then rules to support decisions.

The total amount of data generated by 2010 is estimated to be

If transactions are entered and processed immediately upon entry,then the system is operating in

In 2002,a total of ________ petabytes of new data were created.

Data-mining systems use heuristic techniques to process data to find hidden patterns and relationships among the data.

Information Systems and You

Business Process Management and Decision Making

Productivity, innovation and Strategy

Hardware and Software

Database and Content Management

Networks and Collaboration

Competitive Advantage and Business Proces

E-Commerce, social Networking and Web 2.0

Acquiring Information Systems Through Projects

Structure, governance and Ethics

Managing Information Security and Privacy

Business Process Modeling: Techniques, Rules, and Applications

Excel Basics: Understanding Spreadsheets, Cells, and Formulas

Database Design and Entity Relationships

Creating and Utilizing Forms, Queries, and Reports in MS Access

Understanding MS Project: Features and Functions

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Exam 8: Decision Making and Business Intelligence

It is better to have data that is too fine than too coarse because fine data can be converted to coarse data by

Your local burger joint wants to reap the benefits of improved decision making by using its sales data.In order to do this,it must

Which of the following is an assumption about information systems that Ackoff disputed?

Regression analysis measures the impact of a set of variables on another variable.

________ is a problem that occurs when data-mining is used to create overly complex models that are not suited to making accurate predictions.

With ________,analysts do not create a model or hypothesis before running the analysis.Instead,they apply the data-mining technique to the data and observe the results.

What is supervised data mining?

Systems that focus on making data collected in OLTP to support decision making are often referred to as decision support systems.

What is a data mart?

What is the purpose of business intelligence? What kind of BI tools are there?

The decision to use batch or real time processing should depend upon

Problematic data are termed missing values.

The purpose of (a)________ is to extract and clean data from operational systems and other sources.

Reporting systems are programs that read data from a variety of sources,process that data,produce and deliver formatted reports to users.

Problematic data are termed dirty data.

Experts systems encapsulate knowledge and use if/then rules to support decisions.

The total amount of data generated by 2010 is estimated to be

If transactions are entered and processed immediately upon entry,then the system is operating in

In 2002,a total of ________ petabytes of new data were created.

Data-mining systems use heuristic techniques to process data to find hidden patterns and relationships among the data.

Information Systems and You

Business Process Management and Decision Making

Productivity, innovation and Strategy

Hardware and Software

Database and Content Management

Networks and Collaboration

Competitive Advantage and Business Proces

E-Commerce, social Networking and Web 2.0

Acquiring Information Systems Through Projects

Structure, governance and Ethics

Managing Information Security and Privacy

Business Process Modeling: Techniques, Rules, and Applications

Excel Basics: Understanding Spreadsheets, Cells, and Formulas

Database Design and Entity Relationships

Creating and Utilizing Forms, Queries, and Reports in MS Access

Understanding MS Project: Features and Functions

Filters