General Questions

Question 21 :

Which of the following can be overloaded?


A). Object
B). Functions
C). Operators
D). Both B and C
Answer : Option D

Question 22 :

Which of the following means "The use of an object of one class in definition of another class"?


A). Encapsulation
B). Inheritance
C). Composition
D). Abstraction
Answer : Option C

Question 23 :

Which of the following is the only technical difference between structures and classes in C++?


A). Member function and data are by default protected in structures but private in classes.
B). Member function and data are by default private in structures but public in classes.
C). Member function and data are by default public in structures but private in classes.
D). Member function and data are by default public in structures but protected in classes.
Answer : Option C

Question 24 :

Which of the following statements is correct about the program given below?

class Parinam
{
    public:
    static void MyFunction();
};
int main()
{
    void(*ptr)() = &Parinam::MyFunction;
    return 0; 
}


A). The program reports an error as pointer to member function cannot be defined outside the definition of class.
B). The program reports an error as pointer to static member function cannot be defined.
C). The program reports an error as pointer to member function cannot be defined without object.
D). The program reports linker error.
Answer : Option D

Question 25 :

Which of the following statements are correct for a static member function?

1. It can access only other static members of its class.
2. It can be called using the class name, instead of objects.


A). Only 1 is correct.
B). Only 2 is correct.
C). Both 1 and 2 are correct.
D). Both 1 and 2 are incorrect.
Answer : Option C