Classes Objects interview questions

_____ of a class are data variables that represent the features or properties of a class.

1. Access specifiers
2. Visibility labels
3. Member functions
4. Data members

Declaration and function definitions are two specifications of which of the following

1. Comments
2. Class
3. Data type
4. None of the given

The members that can also be accessed from outside the class should be declared as

1. Protected
2. Private
3. Public
4. None of these

Members of a class are classified as

1. Data functions and member functions
2. Data hiding and data abstraction
3. Data variables and data hiding
4. Data members and member function

void sum:: input ()<br>The above line tells

1. function input is sub function of sum
2. function sum is sub function of input
3. function input is declared within the class sum
4. function sum is declared within the class input

Bjarne Stroustrup initially named C++ as

1. C with classes
2. Advanced C
3. Deep C
4. D

Which of the following statements in NOT true?

1. A non member function cannot access the private data of a class
2. The return type of a member function cannot be object data type
3. Several different classes can use the same function name
4. Member functions can be of static type

int ex:: output ()<br> Which of the following is true with reference to the above line?

1. The function output returns integer data type
2. The function output returns ex type of data
3. The class output returns integer type of data
4. The function ex returns integer type of data

The body of the class starts and ends with

1. Braces i.e.., {}
2. Semi colon(;)
3. Start and stop
4. Begin and end

Data abstraction in C++ is achieved by

1. Encapsulation()
2. Data Hiding()
3. Polymorphism()
4. Inheritance()

Data hiding refers to _____

1. not giving names to data
2. not specifying members and functions of a class
3. declaring members as public
4. members and functions of a class are not accessible by members of outside class

The class members declared _____ can be accessed only within the class and the members of the inherited classes.

1. protected
2. unprotected
3. public
4. private

Declaration of class member are declared as private can be accessed only

1. separately in another class
2. inside or outside the class
3. outside the class
4. within class

The private data of a class can be accessed

1. only by member functions of its own class and friend functions
2. only by member functions of its own class
3. only by friend functions
4. by any function

The member functions declared under which scope can be accessed by the objects.

1. protected
2. global
3. private
4. public

The members of a class are accessed using ___

1. New operator
2. Dot operator
3. + operator
4. Size of operator

The body of a class is terminated by a _____

1. .
2. ;
3. :
4. #

By default class members are treated as ____

1. Public
2. Private
3. Protected
4. Unprotected

The binding of data and functions together into a single entity is known as ____

1. Inheritance
2. Encapsulation
3. Overloading
4. Polymorphism

Which of the following is a way to bind the data and its associated functions together?

1. Methods
2. Class
3. Data
4. Functions

Private access specifier is accessible by special function called ____

1. Void
2. Inline
3. Friend
4. All of these

_____  member variable are initialized only once when the first object of its class is created.

1. Inline
2. Static
3. Private
4. Public

One copy of ___ data members of a class are shared by all objects of that class.

1. Public
2. Static
3. Private
4. Inline

The members defined within the class behave like ____functions.

1. Inline
2. Public
3. Friend
4. None of these

:: is a ___

1. Short circuit AND
2. Short circuit OR
3. Not operator
4. Scope resolution operator

A class belongs to which of the following data types?

1. Array Type
2. Derived Type
3. Built-in Type
4. User Defined Type

Every class declaration is terminated by ____

1. ,(comma)
2. .(dot)
3. ; (semi colon)
4. :: (double colon)

A member function calling another function directly is called as ____

1. Nesting functions
2. Recursive functions
3. Inline functions
4. Friend functions

Class access specifiers are also known as ____

1. Specifications
2. Class depth
3. Visibility labels
4. None of these

____ are the functions that perform specific task in a class.

1. Data functions
2. Concrete functions
3. Member functions
4. Data members