Question 1

A part object which belongs to only one whole object and which lives and dies with the whole object is called a:

Accepted Answer

A)  dependent. 
B)  weak entity. 
C)  composition. 
D)  declarative. 
A)  dependent. 
B)  weak entity. 
C)  composition. 
D)  declarative.

Question 2

If a subclass of a company inherits an operation to compute a tax but extends the inherited behavior by adding a foreign surcharge, this is an example of overriding for extension.

Accepted Answer

A) True 
 B)False

Question 3

An entity that has a well-defined role in the application domain and has a state, behavior, and identity is called an object.

Accepted Answer

A) True 
 B)False

Question 4

A graph of instances that are compatible within a class diagram is called an object diagram.

Accepted Answer

A) True 
 B)False

Question 5

What is the difference between a class and an object?

Accepted Answer

A class is an entity type with

Question 6

A class that has no direct instances but whose descendants may have direct instances is called an abstract class.

Accepted Answer

A) True 
 B)False

Question 7

An association role is the end of an association where it connects to a class.

Accepted Answer

A) True 
 B)False

Question 8

Object-oriented model objects differ from E-R models because:

Accepted Answer

A)  OO store data. 
B)  OO allow data types. 
C)  OO objects exhibit behavior. 
D)  OO stores information. 
A)  OO store data. 
B)  OO allow data types. 
C)  OO objects exhibit behavior. 
D)  OO stores information.

Question 9

Both E-R model and object-oriented models are centered around objects.

Accepted Answer

A) True 
 B)False

Question 10

A UML is a graph of instances that are compatible with a given class diagram.

Accepted Answer

A) True 
 B)False

Question 11

The object-oriented systems development cycle consists of four phases.

Accepted Answer

A) True 
 B)False

Question 12

An instance of a subclass is not always an instance of its superclass.

Accepted Answer

A) True 
 B)False

Question 13

In the figure below, what relationship is shown?

Accepted Answer

A)  Overlaps 
B)  Disjoints 
C)  Rejoinders 
D)  Aggregation 
A)  Overlaps 
B)  Disjoints 
C)  Rejoinders 
D)  Aggregation

Question 14

What is the difference between an abstract class and a concrete class?

Accepted Answer

An abstract class is a class t

Question 15

An operation that applies to a class rather than an object instance is a(n):

Accepted Answer

A)  constructor operation. 
B)  query operation. 
C)  class-scope operation. 
D)  update operation. 
A)  constructor operation. 
B)  query operation. 
C)  class-scope operation. 
D)  update operation.

Question 16

It is only through an operation that other objects can access or manipulate information stored in an object.

Accepted Answer

A) True 
 B)False

Question 17

A model of a real-world application and associated properties are created in the:

Accepted Answer

A)  analysis phase. 
B)  design phase. 
C)  implementation phase. 
D)  evaluation phase. 
A)  analysis phase. 
B)  design phase. 
C)  implementation phase. 
D)  evaluation phase.

Question 18

Which of the following is a function or service provided by all instances of a class?

Accepted Answer

A)  Operation 
B)  Implementation 
C)  Class group 
D)  Query 
A)  Operation 
B)  Implementation 
C)  Class group 
D)  Query

Question 19

Which of the following refers to a set of objects that share common structures and behaviors?

Accepted Answer

A)  Supertype 
B)  Object class 
C)  Model 
D)  Entity group 
A)  Supertype 
B)  Object class 
C)  Model 
D)  Entity group

Question 20

Both E-R model and object-oriented models are centered around:

Accepted Answer

A)  objects. 
B)  encapsulation. 
C)  polymorphism. 
D)  object diagrams. 
A)  objects. 
B)  encapsulation. 
C)  polymorphism. 
D)  object diagrams.

A part object which belongs to only one whole object and which lives and dies with the whole object is called a:

If a subclass of a company inherits an operation to compute a tax but extends the inherited behavior by adding a foreign surcharge, this is an example of overriding for extension.

An entity that has a well-defined role in the application domain and has a state, behavior, and identity is called an object.

A graph of instances that are compatible within a class diagram is called an object diagram.

What is the difference between a class and an object?

A class that has no direct instances but whose descendants may have direct instances is called an abstract class.

An association role is the end of an association where it connects to a class.

Object-oriented model objects differ from E-R models because:

Both E-R model and object-oriented models are centered around objects.

A UML is a graph of instances that are compatible with a given class diagram.

The object-oriented systems development cycle consists of four phases.

An instance of a subclass is not always an instance of its superclass.

In the figure below, what relationship is shown?

What is the difference between an abstract class and a concrete class?

An operation that applies to a class rather than an object instance is a(n):

It is only through an operation that other objects can access or manipulate information stored in an object.

A model of a real-world application and associated properties are created in the:

Which of the following is a function or service provided by all instances of a class?

Which of the following refers to a set of objects that share common structures and behaviors?

Both E-R model and object-oriented models are centered around:

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

A part object which belongs to only one whole object and which lives and dies with the whole object is called a:

If a subclass of a company inherits an operation to compute a tax but extends the inherited behavior by adding a foreign surcharge, this is an example of overriding for extension.

An entity that has a well-defined role in the application domain and has a state, behavior, and identity is called an object.

A graph of instances that are compatible within a class diagram is called an object diagram.

What is the difference between a class and an object?

A class that has no direct instances but whose descendants may have direct instances is called an abstract class.

An association role is the end of an association where it connects to a class.

Object-oriented model objects differ from E-R models because:

Both E-R model and object-oriented models are centered around objects.

A UML is a graph of instances that are compatible with a given class diagram.

The object-oriented systems development cycle consists of four phases.

An instance of a subclass is not always an instance of its superclass.

In the figure below, what relationship is shown?

What is the difference between an abstract class and a concrete class?

An operation that applies to a class rather than an object instance is a(n):

It is only through an operation that other objects can access or manipulate information stored in an object.

A model of a real-world application and associated properties are created in the:

Which of the following is a function or service provided by all instances of a class?

Which of the following refers to a set of objects that share common structures and behaviors?

Both E-R model and object-oriented models are centered around:

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