96. What is meant by type_info?

1. 1. Used to hold the type information returned by the dynamic_cast

   
   
   

   2. Used to hold the type information returned by the static_cast

   
   
   

   3. Used to hold the type information returned by the typeid operator

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Used to hold the type information returned by the typeid operator

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97. Which interface in the container is required for storage management?

1. 1. Allocator interface

   
   
   

   2. Memory interface

   
   
   

   3. Memory management

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Memory interface

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98. How many sets of requirements are need in designing a container?

1. 1. 4

   
   
   

   2. 3

   
   
   

   3. 2

   
   
   

   4. 1

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   There are three sets of requirements. They are container interface requirements, Allocator interface requirements and iterator requirements.

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99. What is the output of this program?
    

    #include <iostream>
        using namespace std;
        struct N 
        {
            virtual void fun()  
            { 
                cout << "Class N" << endl; 
            }
        };
        struct M : N 
        {
            virtual void fun() 
            { 
                cout << "Class M" << endl;
            }
        };
        struct O : N 
        {
            virtual void fun() 
            {
                cout << "Class O" << endl; 
            }
        };
        void fun(N* argumnet) 
        {
            M* ptr1 = dynamic_cast<M*>(argumnet);
            O* ptr2 = dynamic_cast<O*>(argumnet);
            if (ptr1)
                ptr1 -> fun();
            else if (ptr2)
                ptr2 -> fun();
            else
                argumnet -> fun();  
        };
        int main() 
        {
            N Object1;
            O Object2;
            N* ptr1 = &Object2;
            N* ptr3 = &Object1;
            fun(ptr1);
            fun(ptr3);
        }
    

1. 1. Class N
      Class O

   
   
   

   2. Class M
      Class N

   
   
   

   3. Class M
      Class N

   
   
   

   4. Class M
      Class O

   
   
   

   5. Class O
      Class N

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   In this program, We applied the dynamic casting to structure and produced the output.

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100. What is meant by garbage collection?

1. 1. Used to replace the variables

   
   
   

   2. The form of manual memory management

   
   
   

   3. The form of automatic memory management

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   The garbage collection attempts to reclaim memory occupied by objects that are no longer in use by the program.

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