61. What is the output of this program?
    

    #include <iostream>
        #include <typeinfo>
        using namespace std;
        class N 
        { 
        };
        int main()
        { 
            char ch; float n;
            if (typeid(ch) != typeid(n))
            cout << typeid(ch).name() << endl;
            cout << typeid(N).name();
            return 0;
        }
    

1. 1. c
      1N

   
   
   

   2. Compilation Error

   
   
   

   3. n

   
   
   

   4. 1c
      N

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   We are checking the type id of char and float as they are not equal, We are printing c and 1N.

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62. What is the output of this program?
    

    #include <iostream>
        using namespace std;
        void DivFunction(const double num1, const double num2);
        int main()
        {
            double option1=20, option2=5;
            try 
            {
                DivFunction(option1, option2);
            }
            catch (const char* S)
            {
                cout << "Bad Operator caught: " << S;
            }
            return 0;
        }
        void DivFunction(const double num1, const double num2)
        {
            double Res;
            if (num2 == 0)
                throw "Division by zero not allowed";
            Res = num1 / num2;
            cout << Res;
        }
    

1. 1. Bad Operator caught

   
   
   

   2. Division by zero not allowed

   
   
   

   3. 10

   
   
   

   4. 20

   
   
   

   5. 4

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   We are dividing 20 and 5 in this program and we are using the throw statement in the function block.

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63. What operation can be performed by destructor?

1. 1. Exit from the current block

   
   
   

   2. Abort the program

   
   
   

   3. Resource cleanup

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   It will be used to free all the resources that are used by the block of code during execution.

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64. What is the use of RAII in c++ programming?

1. 1. Terminate the program

   
   
   

   2. Exit from the block

   
   
   

   3. Improve the exception safety

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Improve the exception safety

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65. How many levels are there in exception safety?

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

   The three levels of exception safety are basic, strong and no throw.

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