Question 1

According to the UML Notation Guide, overlapping means:

Accepted Answer

A)  a descendant may be descended from more than one of the subclasses. 
B)  a descendant may not be descended from more than one of the subclasses. 
C)  all subclasses have been specified, and no others are expected. 
D)  the list of objects is stable, but relationships will change. 
A)  a descendant may be descended from more than one of the subclasses. 
B)  a descendant may not be descended from more than one of the subclasses. 
C)  all subclasses have been specified, and no others are expected. 
D)  the list of objects is stable, but relationships will change.

Question 2

Polymorphism occurs when the same operation may apply to two or more classes in different ways.

Accepted Answer

A) True 
 B)False

Question 3

The process of replacing a method inherited from a superclass by a more specific implementation of the method in a subclass is called:

Accepted Answer

A)  inheritance. 
B)  encapsulation. 
C)  polymorphism. 
D)  overriding. 
A)  inheritance. 
B)  encapsulation. 
C)  polymorphism. 
D)  overriding.

Question 4

According to the UML Notation Guide, complete means:

Accepted Answer

A)  a descendant may come from more than one supertype. 
B)  a descendant may be not descended from more than one of the subclasses. 
C)  all subclasses have been specified, and no others are expected. 
D)  the list of objects is NOT stable. 
A)  a descendant may come from more than one supertype. 
B)  a descendant may be not descended from more than one of the subclasses. 
C)  all subclasses have been specified, and no others are expected. 
D)  the list of objects is NOT stable.

Question 5

Aggregation is a part-of relationship between a component object and an aggregate object.

Accepted Answer

A) True 
 B)False

Question 6

When some of the operations on a whole class automatically apply to its parts, the operation is said to propagate.

Accepted Answer

A) True 
 B)False

Question 7

What are several motivations and benefits of object-oriented modeling?

Accepted Answer

Coad and Yourdon identified several moti

Question 8

{disjoint, complete} is an example of a UML linking to XML.

Accepted Answer

A) True 
 B)False

Question 9

In the following diagram, ________ objects are present (i.e., :Registration).

Accepted Answer

A)  link 
B)  object 
C)  XML 
D)  ERD 
A)  link 
B)  object 
C)  XML 
D)  ERD

Question 10

A class-scope attribute is an attribute of a class that specifies a value common to an instance of a class.

Accepted Answer

A) True 
 B)False

Question 11

A class-scope attribute is an attribute of a class that specifies a value common to an entire class, rather than a specific value for an instance.

Accepted Answer

A) True 
 B)False

Question 12

In aggregation, some of the operations of the whole automatically apply to its parts.

Accepted Answer

A) True 
 B)False

Question 13

An object class is a set of objects that share a common structure and behavior.

Accepted Answer

A) True 
 B)False

Question 14

A ternary relationship can easily be replaced by three binary relationships.

Accepted Answer

A) True 
 B)False

Question 15

A derived attribute, association, or role is one that can be computed or derived from other attributes, associations, or roles.

Accepted Answer

A) True 
 B)False

Question 16

A query operation does not alter the state of an object.

Accepted Answer

A) True 
 B)False

Question 17

A class diagram shows the static structure of an object-oriented model.

Accepted Answer

A) True 
 B)False

Question 18

________ is the technique of hiding the internal implementation details of an object from its external view.

Accepted Answer

A)  Grouping 
B)  Encapsulation 
C)  Classification 
D)  Mining 
A)  Grouping 
B)  Encapsulation 
C)  Classification 
D)  Mining

Question 19

A duplicity specification in a class diagram is shown as a text string representing an interval (or intervals) of integers.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is a reason for using an object-oriented design?

Accepted Answer

A)  The analysis model is not formal enough to be implemented in a programming language. 
B)  The actual system is not adapted to the environment in which the system will actually be implemented. 
C)  Documentation is provided. 
D)  Traditional ERD is preferred. 
A)  The analysis model is not formal enough to be implemented in a programming language. 
B)  The actual system is not adapted to the environment in which the system will actually be implemented. 
C)  Documentation is provided. 
D)  Traditional ERD is preferred.

According to the UML Notation Guide, overlapping means:

Polymorphism occurs when the same operation may apply to two or more classes in different ways.

The process of replacing a method inherited from a superclass by a more specific implementation of the method in a subclass is called:

According to the UML Notation Guide, complete means:

Aggregation is a part-of relationship between a component object and an aggregate object.

When some of the operations on a whole class automatically apply to its parts, the operation is said to propagate.

What are several motivations and benefits of object-oriented modeling?

{disjoint, complete} is an example of a UML linking to XML.

In the following diagram, ________ objects are present (i.e., :Registration).

A class-scope attribute is an attribute of a class that specifies a value common to an instance of a class.

A class-scope attribute is an attribute of a class that specifies a value common to an entire class, rather than a specific value for an instance.

In aggregation, some of the operations of the whole automatically apply to its parts.

An object class is a set of objects that share a common structure and behavior.

A ternary relationship can easily be replaced by three binary relationships.

A derived attribute, association, or role is one that can be computed or derived from other attributes, associations, or roles.

A query operation does not alter the state of an object.

A class diagram shows the static structure of an object-oriented model.

________ is the technique of hiding the internal implementation details of an object from its external view.

A duplicity specification in a class diagram is shown as a text string representing an interval (or intervals) of integers.

Which of the following is a reason for using an object-oriented design?

The Database Environment and Development Process

Modeling Data in the Organization

The Enhanced E-R Model

Logical Database Design and the Relational Model

Introduction to SQL

Advanced SQL

Databases in Applications

Physical Database Design and Database Infrastructure

Data Warehousing and Data Integration

Big Data Technologies

Analytics and Its Implications

Data and Database Administration With Focus on Data Quality

Distributed Databases

Filters

Exam 14: Object-Oriented Data Modeling

According to the UML Notation Guide, overlapping means:

Polymorphism occurs when the same operation may apply to two or more classes in different ways.

The process of replacing a method inherited from a superclass by a more specific implementation of the method in a subclass is called:

According to the UML Notation Guide, complete means:

Aggregation is a part-of relationship between a component object and an aggregate object.

When some of the operations on a whole class automatically apply to its parts, the operation is said to propagate.

What are several motivations and benefits of object-oriented modeling?

{disjoint, complete} is an example of a UML linking to XML.

In the following diagram, ________ objects are present (i.e., :Registration).

A class-scope attribute is an attribute of a class that specifies a value common to an instance of a class.

A class-scope attribute is an attribute of a class that specifies a value common to an entire class, rather than a specific value for an instance.

In aggregation, some of the operations of the whole automatically apply to its parts.

An object class is a set of objects that share a common structure and behavior.

A ternary relationship can easily be replaced by three binary relationships.

A derived attribute, association, or role is one that can be computed or derived from other attributes, associations, or roles.

A query operation does not alter the state of an object.

A class diagram shows the static structure of an object-oriented model.

________ is the technique of hiding the internal implementation details of an object from its external view.

A duplicity specification in a class diagram is shown as a text string representing an interval (or intervals) of integers.

Which of the following is a reason for using an object-oriented design?

The Database Environment and Development Process

Modeling Data in the Organization

The Enhanced E-R Model

Logical Database Design and the Relational Model

Introduction to SQL

Advanced SQL

Databases in Applications

Physical Database Design and Database Infrastructure

Data Warehousing and Data Integration

Big Data Technologies

Analytics and Its Implications

Data and Database Administration With Focus on Data Quality

Distributed Databases

Filters