Question 1

Besides the new keyword, what keyword can you use when defining a derived class member that has the same name as a base class member?

Accepted Answer

A)  cast 
B)  hide 
C)  override 
D)  overload 
A)  cast 
B)  hide 
C)  override 
D)  overload C

Question 2

What term is synonymous with a derived class?

Accepted Answer

A)  parent class 
B)  superclass 
C)  base class 
D)  subclass 
A)  parent class 
B)  superclass 
C)  base class 
D)  subclass D

Question 3

A class's ToString() method is often a useful debugging aid.

Accepted Answer

A) True 
 B)False  True

Question 4

When a class inherits from a base class, it is known as what type of class?

Accepted Answer

A)  base class 
B)  derived class 
C)  superclass 
D)  parent class 
A)  base class 
B)  derived class 
C)  superclass 
D)  parent class

Question 5

A class that is used as the basis for inheritance is known as what type of class?

Accepted Answer

A)  child class 
B)  extended class 
C)  base class 
D)  subclass 
A)  child class 
B)  extended class 
C)  base class 
D)  subclass

Question 6

A class that is able to inherit from more than one class utilizes what C# feature?

Accepted Answer

A)  polymorphism 
B)  interfacing 
C)  collaboration 
D)  multiple inheritance 
A)  polymorphism 
B)  interfacing 
C)  collaboration 
D)  multiple inheritance

Question 7

Briefly describe the four public instance methods of the Object class.

Accepted Answer

The Object class contains a constructor,

Question 8

What keyword is an alias for the System.Object class?

Accepted Answer

A)  object 
B)  base 
C)  super 
D)  parent 
A)  object 
B)  base 
C)  super 
D)  parent

Question 9

When you use information hiding by selecting which properties and methods of a class to make public, you are assured that your data will be altered only by the properties and methods you choose and only in ways that you can control.

Accepted Answer

A) True 
 B)False

Question 10

What is another name for a derived class in the C# programming language?

Accepted Answer

A)  parent class 
B)  second class 
C)  base class 
D)  child class 
A)  parent class 
B)  second class 
C)  base class 
D)  child class

Question 11

What are the requirements for overloading the Object class's Equals() method?

Accepted Answer

If you overload the Equals() method, it

Question 12

When a derived class contains a method or property that overrides a parent class method or property, how can you use the parent class version from within the subclass? Show an example of a derived class that overrides a parent class method, but then uses the parent class method.

Accepted Answer

When a derived class contains a method o

Question 13

What happens to a base class member in a derived class that is not hidden by the derived class?

Accepted Answer

A)  It is overridden by the derived class. 
B)  It is removed from the derived class. 
C)  It will be visible to the derived class. 
D)  It will be eliminated from the derived class. 
A)  It is overridden by the derived class. 
B)  It is removed from the derived class. 
C)  It will be visible to the derived class. 
D)  It will be eliminated from the derived class.

Question 14

What kind of data field or method can be used within its own class or in any classes extended from that class, but cannot be used by "outside" classes?

Accepted Answer

A)  protected 
B)  public 
C)  private 
D)  internal 
A)  protected 
B)  public 
C)  private 
D)  internal

Question 15

The ability to inherit from more than one class is called multiple inheritance.C# prohibits multiple inheritance, but it does provide an alternative mechanism.Why is multiple inheritance prohibited, and what is the alternative that is provided?

Accepted Answer

Multiple inheritance is a difficult conc

Question 16

Explain the sequence of constructors that will be called when you create an object that is an instance of a derived class.

Accepted Answer

When you create any object, you are call

Question 17

When presented with two classes that have a parent-child relationship, you can tell which class is the base class and which is the derived class by using the two classes in a sentence using what phrase?

Accepted Answer

A)  "is a" 
B)  "in a" 
C)  "of a" 
D)  "uses a" 
A)  "is a" 
B)  "in a" 
C)  "of a" 
D)  "uses a"

Question 18

The Equals() method compares two objects and returns true if they have the same value.

Accepted Answer

A) True 
 B)False

Question 19

Briefly describe the similarities and differences between abstract classes and interfaces.

Accepted Answer

Abstract classes and interfaces are simi

Question 20

What type of class is one from which you cannot create concrete objects, but from which you can inherit?

Accepted Answer

A)  abstract 
B)  concrete 
C)  base 
D)  derived 
A)  abstract 
B)  concrete 
C)  base 
D)  derived

Besides the new keyword, what keyword can you use when defining a derived class member that has the same name as a base class member?

What term is synonymous with a derived class?

A class's ToString() method is often a useful debugging aid.

When a class inherits from a base class, it is known as what type of class?

A class that is used as the basis for inheritance is known as what type of class?

A class that is able to inherit from more than one class utilizes what C# feature?

Briefly describe the four public instance methods of the Object class.

What keyword is an alias for the System.Object class?

When you use information hiding by selecting which properties and methods of a class to make public, you are assured that your data will be altered only by the properties and methods you choose and only in ways that you can control.

What is another name for a derived class in the C# programming language?

What are the requirements for overloading the Object class's Equals() method?

When a derived class contains a method or property that overrides a parent class method or property, how can you use the parent class version from within the subclass? Show an example of a derived class that overrides a parent class method, but then uses the parent class method.

What happens to a base class member in a derived class that is not hidden by the derived class?

What kind of data field or method can be used within its own class or in any classes extended from that class, but cannot be used by "outside" classes?

The ability to inherit from more than one class is called multiple inheritance.C# prohibits multiple inheritance, but it does provide an alternative mechanism.Why is multiple inheritance prohibited, and what is the alternative that is provided?

Explain the sequence of constructors that will be called when you create an object that is an instance of a derived class.

When presented with two classes that have a parent-child relationship, you can tell which class is the base class and which is the derived class by using the two classes in a sentence using what phrase?

The Equals() method compares two objects and returns true if they have the same value.

Briefly describe the similarities and differences between abstract classes and interfaces.

What type of class is one from which you cannot create concrete objects, but from which you can inherit?

A First Program Using C#

Using Data

Using Gui Objects and the Visual Studio Ide

Looping

Using Arrays

Using Methods

Advanced Method Concepts

Using Classes and Objects

Exception Handling

Using Controls

Handling Events

Files and Streams

Making Decisions

Filters

Exam 10: Introduction to Inheritance

Besides the new keyword, what keyword can you use when defining a derived class member that has the same name as a base class member?

What term is synonymous with a derived class?

A class's ToString() method is often a useful debugging aid.

When a class inherits from a base class, it is known as what type of class?

A class that is used as the basis for inheritance is known as what type of class?

A class that is able to inherit from more than one class utilizes what C# feature?

Briefly describe the four public instance methods of the Object class.

What keyword is an alias for the System.Object class?

When you use information hiding by selecting which properties and methods of a class to make public, you are assured that your data will be altered only by the properties and methods you choose and only in ways that you can control.

What is another name for a derived class in the C# programming language?

What are the requirements for overloading the Object class's Equals() method?

When a derived class contains a method or property that overrides a parent class method or property, how can you use the parent class version from within the subclass? Show an example of a derived class that overrides a parent class method, but then uses the parent class method.

What happens to a base class member in a derived class that is not hidden by the derived class?

What kind of data field or method can be used within its own class or in any classes extended from that class, but cannot be used by "outside" classes?

The ability to inherit from more than one class is called multiple inheritance.C# prohibits multiple inheritance, but it does provide an alternative mechanism.Why is multiple inheritance prohibited, and what is the alternative that is provided?

Explain the sequence of constructors that will be called when you create an object that is an instance of a derived class.

When presented with two classes that have a parent-child relationship, you can tell which class is the base class and which is the derived class by using the two classes in a sentence using what phrase?

The Equals() method compares two objects and returns true if they have the same value.

Briefly describe the similarities and differences between abstract classes and interfaces.

What type of class is one from which you cannot create concrete objects, but from which you can inherit?

A First Program Using C#

Using Data

Using Gui Objects and the Visual Studio Ide

Looping

Using Arrays

Using Methods

Advanced Method Concepts

Using Classes and Objects

Exception Handling

Using Controls

Handling Events

Files and Streams

Making Decisions

Filters