Question 1

To instantiate an object and initialize it with one or more properties in a single step you must use the initialize method.

Accepted Answer

A) True 
 B)False

Question 2

____ is an object-oriented feature that provides the ability to make important object features available while hiding nonessential details.

Accepted Answer

A)  Abstraction 
B)  Encapsulation 
C)  Inheritance 
D)  Polymorphism 
A)  Abstraction 
B)  Encapsulation 
C)  Inheritance 
D)  Polymorphism

Question 3

Access specified by the public, private or protected keywords, remains in affect ____.

Accepted Answer

A)  Only until the statement that following it is executed. 
B)  Only until the methods in which it is defined is executed. 
C)  Until either the end of the class is reached or a different level of encapsulation is specified. 
D)  None of the above 
A)  Only until the statement that following it is executed. 
B)  Only until the methods in which it is defined is executed. 
C)  Until either the end of the class is reached or a different level of encapsulation is specified. 
D)  None of the above

Question 4

Polymorphism can be implemented within Ruby by assigning different names to different methods.

Accepted Answer

A) True 
 B)False

Question 5

Abstraction is implemented through classes and includes the specification of both properties and methods.

Accepted Answer

A) True 
 B)False

Question 6

Polymorphism is the process by which one class is derived from another class.

Accepted Answer

A) True 
 B)False

Question 7

The problem with using global variables is that they work against object-oriented programming principles.

Accepted Answer

A) True 
 B)False

Question 8

Polymorphism is the ability to define objects and methods in different forms.

Accepted Answer

A) True 
 B)False

Question 9

One limitation of working with Ruby classes is that Ruby does not permit programmer's to customize the language to meet programmer needs.

Accepted Answer

A) True 
 B)False

Question 10

It is sometimes helpful to increase the scope of the variables to allow them to be referenced by all the methods in that class definition.

Accepted Answer

A) True 
 B)False

To instantiate an object and initialize it with one or more properties in a single step you must use the initialize method.

____ is an object-oriented feature that provides the ability to make important object features available while hiding nonessential details.

Access specified by the public, private or protected keywords, remains in affect ____.

Polymorphism can be implemented within Ruby by assigning different names to different methods.

Abstraction is implemented through classes and includes the specification of both properties and methods.

Polymorphism is the process by which one class is derived from another class.

The problem with using global variables is that they work against object-oriented programming principles.

Polymorphism is the ability to define objects and methods in different forms.

One limitation of working with Ruby classes is that Ruby does not permit programmer's to customize the language to meet programmer needs.

It is sometimes helpful to increase the scope of the variables to allow them to be referenced by all the methods in that class definition.

Ruby Basics

Interacting With Ruby

Working With Strings, Objects, and Variables

Implementing Conditional Logic

Working With Loops

Working With Collections of Data

Working With Regular Expressions

File and Folder Administration

Debugging

Ruby on Rails Web Development

Filters

Exam 8: Object-Oriented Programming

To instantiate an object and initialize it with one or more properties in a single step you must use the initialize method.

____ is an object-oriented feature that provides the ability to make important object features available while hiding nonessential details.

Access specified by the public, private or protected keywords, remains in affect ____.

Polymorphism can be implemented within Ruby by assigning different names to different methods.

Abstraction is implemented through classes and includes the specification of both properties and methods.

Polymorphism is the process by which one class is derived from another class.

The problem with using global variables is that they work against object-oriented programming principles.

Polymorphism is the ability to define objects and methods in different forms.

One limitation of working with Ruby classes is that Ruby does not permit programmer's to customize the language to meet programmer needs.

It is sometimes helpful to increase the scope of the variables to allow them to be referenced by all the methods in that class definition.

Ruby Basics

Interacting With Ruby

Working With Strings, Objects, and Variables

Implementing Conditional Logic

Working With Loops

Working With Collections of Data

Working With Regular Expressions

File and Folder Administration

Debugging

Ruby on Rails Web Development

Filters