Question 1

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

Accepted Answer

The answer of Explain the sequence of constructors that will...

Question 2

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

Accepted Answer

The answer of What are the requirements for overloading the...

Question 3

A(n) ____________________ method is one that can be overridden by a method with the same signature in a child class.

Accepted Answer

The answer of A(n) ____________________ method is one that can...

Question 4

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 with the phrase ____.

Accepted Answer

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

Question 5

You can assign a derived class object to an object of any of its superclass types. When you do, C# makes a(n) ____ conversion from derived class to base class.

Accepted Answer

A)  explicit 
B)  implicit 
C)  real 
D)  strong

Question 6

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

Accepted Answer

The answer of Briefly describe the similarities and differences between...

Question 7

A ____ is sometimes called a "fingerprint" for an object because it uniquely identifies the object.

Accepted Answer

A)  property 
B)  hash code 
C)  derived code 
D)  new property

Question 8

A(n) ____ is a synonym for a base class.

Accepted Answer

A)  derived class 
B)  parent class 
C)  extended class 
D)  child class

Question 9

The ____ Object class method returns a string that holds the name of the class, just as GetType() does.

Accepted Answer

A)  GetHashCode() 
B)  Equals() 
C)  GetName() 
D)  ToString()

Question 10

A(n) ____ method has no method statements; any class derived from a class that contains one must override it by providing a body.

Accepted Answer

A)  concrete 
B)  overloaded 
C)  abstract 
D)  overridden

Question 11

On some occasions, you might want to access parent class data from a child class. Declaring the parent class field as public would violate the principle of information hiding, but declaring it private would make it inaccessible. How can the proper level of security be achieved?

Accepted Answer

The answer of On some occasions, you might want to...

Question 12

____________________ are methods that you can write to add to any type, even if you did not create the original class.

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The answer of ____________________ are methods that you can write...

Question 13

C# makes implicit conversions when casting one data type to another. When a derived class object is assigned to its ancestor's data type, the conversion can more specifically be called a(n) ___________________________________.

Accepted Answer

The answer of C# makes implicit conversions when casting one...

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

A ____ is a synonym for a derived class.

Accepted Answer

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

Question 16

When you declare a property defined in a base class as override in a derived class, this new declaration overrides and ____ its counterpart in the parent class.

Accepted Answer

A)  eliminates 
B)  removes 
C)  uses 
D)  hides

Question 17

Match between columns
                        Premises: The ultimate base class for all other types
Using the same method name to indicate different implementations
Also known as a derived class
Returns true if two Object s have the same memory address
A synonym for base class
Can be used by a class and its descendants
A class that cannot be extended
Returns a string containing an object's class
Occurs when two reference type objects refer to the same object

Accepted Answer

The Answer of GetType() and polymorphism and Equals() and System.Object is...

Question 18

A class that inherits from a base class is a ____.

Accepted Answer

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

Question 19

In C#, you can use either new or ____ 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

Question 20

A class that is used as a basis for inheritance is called a(n) ____.

Accepted Answer

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

Exam 10: Introduction to Inheritance