C++ (Unit 1 & 2)

Which of the following is the correct identifier?

• 1. VAR_123

• 1. $var_name

• 1. varname@

• 9abc_12

Which of the following is the concept of OOPs

• object

• function

• Class

• method

Which is used to define the member of a class externally?

• :

• ;;

• #

• ::

Which of the following is a valid class declaration?

• class A { int x; };

• class B { }

• public class A { }

• object A { int x; };

The data members and functions of a class in C++ are by default ____________

• protected

• public

• private

• public & protected

Which of the following access specifier or specifiers are used for inheritance?

• provate

• public

• protected

• all of the above

Which of the following statements is correct about the friend function in C++ programming language?

• 1. A friend function is able to access private members of a class

• 1. A friend function can access the private members of a class

• 1. A friend function is able to access the public members of a class

• 1. All of the above

Which type of approach is used by the C++ language?

• 1. Right to left

• 1. Bottom-up

• 1. Top to bottom

• 1. Left to right

Which one of the following cannot be a friend in C++ languages?

• 1. A Class

• 1. A Function

• 1. An Object

• all of the above

How are the references different from the pointer?

• 1. A reference cannot be modified once it initialized

• 1. There is no need of an extra operator for dereferencing of a reference

• 1. A reference cannot be NULL

• 1. All of the above