Question 1

Which of the following is true of an E-R diagram?

Accepted Answer

A) Every entity has an identifier. 
B) Many-to-many relationships are generally denoted as N:N. 
C) A crow's-foot is required to represent a 1:1 relationship. 
D) Identifiers are shown in a section at the top of the entity. 
A) Every entity has an identifier. 
B) Many-to-many relationships are generally denoted as N:N. 
C) A crow's-foot is required to represent a 1:1 relationship. 
D) Identifiers are shown in a section at the top of the entity.

Question 2

________ are attributes whose values are associated with one and only one entity instance.

Accepted Answer

A) Descriptors 
B) Cardinalities 
C) Dependencies 
D) Identifiers 
A) Descriptors 
B) Cardinalities 
C) Dependencies 
D) Identifiers

Question 3

Tables that are not normalised can have data integrity problems.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is true of a data model?

Accepted Answer

A) It is created after the database is designed. 
B) It is a logical representation of the structure of data. 
C) It is an attribute whose value is associated with only one entity instance. 
D) It does not describe the relationships among data. 
A) It is created after the database is designed. 
B) It is a logical representation of the structure of data. 
C) It is an attribute whose value is associated with only one entity instance. 
D) It does not describe the relationships among data.

Which of the following is true of an E-R diagram?

________ are attributes whose values are associated with one and only one entity instance.

Tables that are not normalised can have data integrity problems.

Which of the following is true of a data model?

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Introduction to Microsoft Excel 2013

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Exam 17: Database Design

Which of the following is true of an E-R diagram?

________ are attributes whose values are associated with one and only one entity instance.

Tables that are not normalised can have data integrity problems.

Which of the following is true of a data model?

The Importance of Mis

Business Processes, Information Systems and Information

Organisational Strategy, Information Systems and Competitive Advantage

Hardware and Software

Database Processing

The Cloud

Organisations and Information Systems

Social Media Information Systems

Business Intelligence Systems

Information Systems Development

Information Systems Management

Information Security Management

Collaboration Information Systems for Decision Making, Problem Solving and Project Management

Collaboration Information Systems for Student Projects

Mobile Systems

Introduction to Microsoft Excel 2013

Using Microsoft Access 2013

Using Excel and Access Together

Network and Cloud Technology

Enterprise Resource Planning Erp Systems

Supply Chain Management

Hyper-Social Organisations and Knowledge Management

Database Marketing

Reporting Systems and Olap

Systems Development Project Management

Agile Development

Business Process Management

International Mis

Filters