Question 1

Dividing a program into functions

Accepted Answer

A)  is the key to object-oriented programming.
B)  makes the program easier to conceptualize.
C)  may reduce the size of the program.
D)  option b and c D

Question 2

The default access level assigned to members of a class is

Accepted Answer

A)  private
B)  public
C)  protected
D)  needs to be assigned A

Question 3

Which of the following operators allow defining the member functions of a class outside the class?

Accepted Answer

A)  (::) 
B)  (?) 
C)  (:?) 
D)  (%)  A

Question 4

There is nothing like a virtual constructor of a class.

Accepted Answer

A) True 
 B)False

Question 5

Variables declared in the body of a particular member function are known as data members and can be used in all member functions of the class.

Accepted Answer

A) True 
 B)False

Question 6

For the object for which it was called, a const member function

Accepted Answer

A)  can modify both const and non-const member data.
B)  can modify only const member data.
C)  can modify only non-const member data.
D)  can modify neither const nor non-const member data.

Question 7

What is the difference between struct and class in terms of Access Modifier?

Accepted Answer

A)  by default all the struct members are private while by default class members are public.
B)  by default all the struct members are protected while by default class members are private.
C)  by default all the struct members are public while by default class members are private.
D)  by default all the struct members are public while by default class members are protected.

Question 8

Every class has at least one constructor function, even when none is declared.

Accepted Answer

A) True 
 B)False

Question 9

Which one of the following is not a valid reserved keyword in C++?

Accepted Answer

A)  explicit
B)  public
C)  implicit
D)  private

Question 10

Under what conditions a destructor destroys an object?

Accepted Answer

A)  scope of existence has finished
B)  object dynamically assigned and it is released using the operator delete.
C)  program terminated.
D)  both a and b.

Question 11

When class B is inherited from class A, what is the order in which the constructers of those classes are called

Accepted Answer

A)  class a first class b next
B)  class b first class a next
C)  class b's only as it is the child class
D)  class a's only as it is the parent class

Question 12

A function argument is

Accepted Answer

A)  a variable in the function that receives a value from the calling program.
B)  a way that functions resist accepting the calling program's values.
C)  a value sent to the function by the calling program.
D)  a value returned by the function to the calling program.

Question 13

A function's single most important role is to

Accepted Answer

A)  give a name to a block of code.
B)  reduce program size.
C)  accept arguments and provide a return value.
D)  help organize a program into conceptual units.

Question 14

What is a constructor?

Accepted Answer

A)  a class automatically called whenever a new object of this class is created.
B)  a class automatically called whenever a new object of this class is destroyed.
C)  a function automatically called whenever a new object of this class is created.
D)  a function automatically called whenever a new object of this class is destroyed.

Question 15

In a class definition, data or functions designated private are accessible

Accepted Answer

A)  to any function in the program.
B)  only if you know the password.
C)  to member functions of that class.
D)  only to public members of the class.

Question 16

Which type of class has only one unique value for all the objects of that same class?

Accepted Answer

A)  this
B)  friend
C)  static
D)  both a and b

Question 17

An expression

Accepted Answer

A)  usually evaluates to a numerical value.
B)  may be part of a statement.
C)  always occurs outside a function.
D)  option a and b

Question 18

Classes are useful because they

Accepted Answer

A)  can closely model objects in the real world.
B)  permit data to be hidden from other classes.
C)  bring together all aspects of an entity in one place.
D)  options a, b and c

Question 19

It's perfectly all right to use variables of different data types in the same arithmetic expression.

Accepted Answer

A) True 
 B)False

Question 20

A variable of type char can hold the value 301.

Accepted Answer

A) True 
 B)False

Exam 1: C++ Class and Function Fundamentals

Dividing a program into functions

The default access level assigned to members of a class is

Which of the following operators allow defining the member functions of a class outside the class?

There is nothing like a virtual constructor of a class.

Variables declared in the body of a particular member function are known as data members and can be used in all member functions of the class.

For the object for which it was called, a const member function

What is the difference between struct and class in terms of Access Modifier?

Every class has at least one constructor function, even when none is declared.

Which one of the following is not a valid reserved keyword in C++?

Under what conditions a destructor destroys an object?

When class B is inherited from class A, what is the order in which the constructers of those classes are called

A function argument is

A function's single most important role is to

What is a constructor?

In a class definition, data or functions designated private are accessible

Which type of class has only one unique value for all the objects of that same class?

An expression

Classes are useful because they

It's perfectly all right to use variables of different data types in the same arithmetic expression.

A variable of type char can hold the value 301.