Filters
Question type
Study Flashcards

________ systems integrate data from multiple sources,and they process that data by sorting,grouping,summing,averaging,and comparing.


A) Knowledge management
B) Data-mining
C) Expert
D) Reporting

E) All of the above
F) C) and D)

Correct Answer

verifed

verified

A ________ is a data collection that is created to address the needs of a particular business function,problem,or opportunity.


A) data mart
B) data harvester
C) data mine
D) data warehouse

E) None of the above
F) B) and C)

Correct Answer

verifed

verified

Which of the following systems use If/Then rules?


A) data-mining systems
B) knowledge-management systems
C) expert systems
D) reporting systems

E) None of the above
F) B) and C)

Correct Answer

verifed

verified

The facts about data,such as its source,format,assumptions,constraints,and the like,are called ________.


A) metadata
B) folksonomies
C) microdata
D) data packets

E) A) and D)
F) C) and D)

Correct Answer

verifed

verified

What is the purpose of a data warehouse?

Correct Answer

verifed

verified

The purpose of a data warehouse is to ex...

View Answer

Knowledge-management systems follow If/Then rules.

A) True
B) False

Correct Answer

verifed

verified

1,000,000 bytes equal one gigabyte.

A) True
B) False

Correct Answer

verifed

verified

What are the characteristics and advantages of knowledge management systems?

Correct Answer

verifed

verified

Knowledge management (KM)systems create ...

View Answer

The more attributes there are,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

E) None of the above
F) B) and C)

Correct Answer

verifed

verified

Write a brief note on the characteristics and advantages of expert system.

Correct Answer

verifed

verified

Expert systems encapsulate the knowledge...

View Answer

Data warehouses extract and clean data from operational systems.

A) True
B) False

Correct Answer

verifed

verified

How is a data warehouse different from a data mart?

Correct Answer

verifed

verified

The purpose of a data warehouse is to ex...

View Answer

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 but the more relevant it is as a predictor.

A) True
B) False

Correct Answer

verifed

verified

One megabyte is equal to ________ bytes.


A) 1,000
B) 1,000,000,000
C) 1,000,000,000,000
D) 1,000,000

E) A) and C)
F) None of the above

Correct Answer

verifed

verified

Regression analysis is used to find groups of similar customers from customer order and demographic data.

A) True
B) False

Correct Answer

verifed

verified

Data warehouses and data marts are expensive to create,staff,and operate.

A) True
B) False

Correct Answer

verifed

verified

Which of the following is true for data warehouses?


A) Data are stored in a data warehouse database using a data warehouse DBMS.
B) Data warehouses are prohibited from purchasing data from outside sources.
C) User-generated content applications generate potentially large amounts of data.
D) Purchased data is more accurate than data collected directly from clients.

E) A) and B)
F) A) and C)

Correct Answer

verifed

verified

________ bytes equal one terabyte.


A) 1,000
B) 1,000,000
C) 1,000,000,000,000
D) 1,000,000,000

E) B) and D)
F) All of the above

Correct Answer

verifed

verified

Which of the following is a problem commonly associated with operational data that have been gathered over time?


A) too fine
B) nonintegrated
C) inconsistent
D) missing values

E) B) and D)
F) B) and C)

Correct Answer

verifed

verified

What is dirty data?

Correct Answer

verifed

verified

Data from transaction processing and oth...

View Answer

Showing 61 - 80 of 80

Related Exams

Exam 1

The Importance of MIS

81 Questions

Exam 2

Business Processes, Information, and Information Systems

80 Questions

Exam 3

Organizational Strategy, Information Systems, and Competitive Advantage

80 Questions

Exam 4

Hardware and Software

80 Questions

Exam 5

Database Processing

80 Questions

Exam 6

Data Communications

80 Questions

Exam 7

Business Process Management

80 Questions

Exam 8

E-Commerce, Web 2.0, and Social Networking

80 Questions

Exam 10

Information Systems Development

80 Questions

Exam 11

Information Systems Management

78 Questions

Exam 12

Information Security Management

80 Questions

Exam 13

Improving Your Collaboration Skills

40 Questions

Exam 14

Using Collaboration Information Systems

40 Questions

Exam 15

Information Systems and Decision Making

40 Questions

Exam 16

Knowledge Management and Expert Systems

39 Questions

Exam 17

Introduction to Microsoft Excel

40 Questions

Exam 18

Preparing a Computer Budget Using Excel

39 Questions

Exam 19

Database Design

40 Questions

Exam 20

Using Microsoft Access 2010

40 Questions

Exam 21

Using Excel and Access Together

40 Questions

Exam 22

Remote, Nomadic, and Mobile Systems

40 Questions

Exam 23

Functional Processes, Applications, and Systems

40 Questions

Exam 24

Enterprise Resource Planning (ERP)Systems

41 Questions

Exam 25

Supply Chain Management

40 Questions

Exam 26

Processing Social Capital: Facebook, Twitter, and User-Generated Content (UGC)

40 Questions

Exam 27

Database Marketing

40 Questions

Exam 28

Reporting Systems and OLAP

42 Questions

Exam 29

Geographic Information Systems

41 Questions

Exam 30

Business Process Management

39 Questions

Exam 31

Systems Development Project Management

39 Questions

Exam 32

Outsourcing

40 Questions

Exam 33

International MIS

40 Questions

Show Answer