Classes, Objects & Functions

Which of the following best describes function overloading in C++?

• Defining functions with the same name and same parameters

• Defining multiple functions with the same name but different parameter lists

• Defining functions with the same name but different return types only

• Using functions without return types

What is required for function overloading to occur?

• Same function name but different parameter list

• Different function names with same parameter list

• Same function name and same parameter list

• Functions having same return type

How do you define a member function outside a class?

• Using @ symbol

• Using the scope resolution operator (::)

• Using arrow operator (->)

• Using dot operator (.)

Which keyword is used to define a static data member?

• const

• register

• static

• extern

Which of the following statements about static data members is true?

• Each object has its own copy of static data members

• Static members can only be used within constructors

• Static members cannot be initialized

• Static data members are shared among all objects of the class

How can a static member function be called?

• Only through an object

• Through an inherited class only

• Using class name and scope resolution operator

• Using 'this' pointer

Which of the following cannot be accessed by a static member function?

• Static data members

• Global variables

• Non-static data members

• Static member functions

How many times is a static data member initialized?

• Every time an object is created

• Twice, when accessed inside and outside the class

• Only once, at the class level

• Every time a function is called

Which keyword is used to declare a friend function?

• friend

• static

• public

• private

What is a friend function in C++?

• A static function of a class

• A non-member function that can access private and protected members of a class

• A private member function

• A global function