31. Pick out the correct statement.

1. 1. A derived class’s destructor can invoke its base class’s destructor

   
   
   

   2. A derived class’s constructor cannot explicitly invokes its base class’s constructor

   
   
   

   3. A derived class’s destructor cannot invoke its base class’s destructor

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Destructors are automatically invoked when a object goes out of scope or when a dynamically allocated object is deleted. Inheritance does not change this behavior. This is the reason a derived destructor cannot invoke its base class destructor.

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32. Where is the derived class is derived from?

1. 1. base

   
   
   

   2. derived

   
   
   

   3. Top

   
   
   

   4. both derived & base

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Because derived inherits functions and variables from base.

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33. What is the output of this program?
    

    #include <iostream>
        using namespace std;
        class Example
        {
            public:
            Example() 
            {  
                cout << "N::N()" << endl; 
            }
            Example( Example const & ) 
            {  
                cout << "N::N( N const & )" << endl;
            }
            Example& operator=( Example const & )
            { 
                cout << "N::operator=(N const &)" << endl;
            }
        };
        Example function() 
        {
            Example temp;
            return temp;
        }
        int main() 
        {
            Example p = function();
            return 0;
        }
    

1. 1. N::N(N const & )

   
   
   

   2. N

   
   
   

   3. N::operator=(N const &)

   
   
   

   4. N::N()

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   As we are passing the object without any attributes it will return as N::N().

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34. Which container in c++ will take large objects?

1. 1. class

   
   
   

   2. vector

   
   
   

   3. string

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   Because the vector is mainly used to store large objects for the game
   programming and other operations etc.

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35. How to store the large objects in c++ if it extends its allocated memory?

1. 1. queue

   
   
   

   2. memory heap

   
   
   

   3. stack

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   memory heap

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