Question 1

When an object or structure variable is passed to a function as a constant reference

Accepted Answer

A)   the function accesses the original object, rather than a copy of it.
B)   the function cannot make any changes to the member variables.
C)   it is more efficient than passing it by value.
D)   all of the above are True.
E)   A and B are True, but not C.F) C) and D)
G) A) and E)

Question 2

Public members of a class object can be accessed from outside the class by using the

Accepted Answer

A)   dot operator.
B)   get function.
C)   extraction operator.
D)   member access operator.
E)   class name.F) D) and E)
G) C) and E)

Question 3

A constructor is a public class function that gets called whenever you want to re-initialize an object's member data.

Accepted Answer

A) True 
 B)False

Question 4

A C++ member function that sets or changes the value stored in a member variable is called

Accepted Answer

A)   an accessor.
B)   a mutator.
C)   a user.
D)   a get function.
E)   an updater.F) B) and C)
G) B) and D)

Question 5

A constructor is a public class function that is automatically invoked (i.e., called) whenever a class object is created.

Accepted Answer

A) True 
 B)False

Question 6

A structure variable is similar to a class object in which of the following ways?

Accepted Answer

A)   It has member data that is usually private and accessed through public member functions.
B)   Its data can be initialized with a constructor.
C)   It can be passed to a function or returned from a function.
D)   All of the above.
E)   B and C, but not A.F) B) and E)
G) C) and D)

Question 7

An Abstract data type (AD
T) is a programmer-defined data type that specifies the values the type can hold, the operations that can be performed on them, and how the operations will be implemented.

Accepted Answer

A) True 
 B)False  False

Question 8

If setSide is a Square class function and box is a Square object, which of the following statements would set the length of box's side to 5?

Accepted Answer

A)   setSide(5) ;
B)   box.setSide(5) ;
C)   Square.setSide(5) ;
D)   Square.setSide = 5;
E)   None of the aboveF) None of the above
G) A) and E)

Question 9

The bundling of an object's data and functions together is called

Accepted Answer

A)   OOP.
B)   encapsulation.
C)   data hiding.
D)   structuring.
E)   private access.F) A) and E)
G) A) and B)

Question 10

When three different objects of a class are created, they are said to be separate ________ of the class.

Accepted Answer

A)   members
B)   ADTs
C)   instances
D)   children
E)   None of the aboveF) All of the above
G) A) and B) C

Question 11

A structure has member variables, like an object, but they are usually all public and accessed directly with the dot operator, instead of by calling member functions.

Accepted Answer

A) True 
 B)False

Question 12

An object typically hides its data, but allows outside code to access it through its

Accepted Answer

A)   private member functions.
B)   public member functions.
C)   public data members.
D)   access specifiers.
E)   None of the aboveF) B) and C)
G) A) and E)

Question 13

A constructor that does not require that any arguments be passed to it is called a(n)  ________ constructor.

Accepted Answer

A)   empty
B)   default
C)   stand-alone
D)   zero-element
E)   uselessF) C) and E)
G) B) and D)

Question 14

A destructor is a member function that

Accepted Answer

A)   is used to remove old unneeded objects.
B)   causes the program to end.
C)   is automatically called when an object is destroyed.
D)   can only be called by the main function of a program.
E)   None of the above.F) C) and D)
G) A) and C)

Question 15

The ________ is used to protect important data.

Accepted Answer

A)   default constructor
B)   class protection operator
C)   protect()  member function
D)   public access specifier
E)   private access specifierF) A) and B)
G) B) and E)

Question 16

A(n)  ________ member function may be called by a statement in a function that is outside of the class.

Accepted Answer

A)   inline
B)   public
C)   private
D)   declared
E)   constructorF) None of the above
G) A) and C)

Question 17

What will the following code segment display?
Enum Season {Spring, Summer, Fall, Winter} favoriteSeason;
FavoriteSeason = Summer;
Cout << favoriteSeason;

Accepted Answer

A)   1
B)   2
C)   Summer
D)   "Summer"
E)   None of these.F) C) and E)
G) D) and E)

Question 18

When the body of a member function is defined inside a class declaration, it is called a(n)  ________ function.

Accepted Answer

A)   static
B)   global
C)   inline
D)   conditional
E)   constructorF) A) and E)
G) A) and D) C

Question 19

Accessors are sometimes called ________ functions and mutators are sometimes called ________ functions.

Accepted Answer

A)   set, get
B)   get, set
C)   public, private
D)   private, public
E)   regular, inlineF) B) and C)
G) B) and D)

Question 20

An object is a(n)  ________ of a class.

Accepted Answer

A)   example
B)   copy
C)   instance
D)   attribute
E)   memberF) D) and E)
G) C) and D)

Exam 7: Introduction to Classes and Objects

When an object or structure variable is passed to a function as a constant reference

Correct AnswerverifiedShow Answer

Public members of a class object can be accessed from outside the class by using the

Correct AnswerverifiedShow Answer

A constructor is a public class function that gets called whenever you want to re-initialize an object's member data.

Correct AnswerverifiedShow Answer

A C++ member function that sets or changes the value stored in a member variable is called

Correct AnswerverifiedShow Answer

A constructor is a public class function that is automatically invoked (i.e., called) whenever a class object is created.

Correct AnswerverifiedShow Answer

A structure variable is similar to a class object in which of the following ways?

Correct AnswerverifiedShow Answer

An Abstract data type (AD T) is a programmer-defined data type that specifies the values the type can hold, the operations that can be performed on them, and how the operations will be implemented.

Correct AnswerverifiedFalse

If setSide is a Square class function and box is a Square object, which of the following statements would set the length of box's side to 5?

Correct AnswerverifiedShow Answer

The bundling of an object's data and functions together is called

Correct AnswerverifiedShow Answer

When three different objects of a class are created, they are said to be separate ________ of the class.

Correct AnswerverifiedC

A structure has member variables, like an object, but they are usually all public and accessed directly with the dot operator, instead of by calling member functions.

Correct AnswerverifiedShow Answer

An object typically hides its data, but allows outside code to access it through its

Correct AnswerverifiedShow Answer

A constructor that does not require that any arguments be passed to it is called a(n) ________ constructor.

Correct AnswerverifiedShow Answer

A destructor is a member function that

Correct AnswerverifiedShow Answer

The ________ is used to protect important data.

Correct AnswerverifiedShow Answer

A(n) ________ member function may be called by a statement in a function that is outside of the class.

Correct AnswerverifiedShow Answer

What will the following code segment display? Enum Season {Spring, Summer, Fall, Winter} favoriteSeason; FavoriteSeason = Summer; Cout << favoriteSeason;

Correct AnswerverifiedShow Answer

When the body of a member function is defined inside a class declaration, it is called a(n) ________ function.

Correct AnswerverifiedC

Accessors are sometimes called ________ functions and mutators are sometimes called ________ functions.

Correct AnswerverifiedShow Answer

An object is a(n) ________ of a class.

Correct AnswerverifiedShow Answer

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False

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C

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C

Accessors are sometimes called functions and mutators are sometimes called functions.

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