11. Identify the correct statement.

1. 1. Namespace is used to mark the beginning of the program

   
   
   

   2. A namespace is used to separate the class, objects

   
   
   

   3. Namespace is used to group class, objects and functions

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Namespace allows you to group class, objects, and functions. It is used to divide the global scope into the sub-scopes.

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12. What is the use of Namespace?

1. 1. To structure a program into logical units

   
   
   

   2. Encapsulate the data & structure a program into logical units

   
   
   

   3. To encapsulate the data

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   The main aim of the namespace is to understand the logical units of the program and to make the program so robust.

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13. What is the general syntax for accessing the namespace variable?

1. 1. namespace#operator

   
   
   

   2. namespace::operator

   
   
   

   3. namespace,operator

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   namespace::operator

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14. What is the output of this program?
    

    #include 
        using namespace std;
        namespace One
        {
            int num = 12;
        }
        namespace Two
        {
            double num = 10.027;
        }
        int main ()
        {
            int n;
            n = One::num + Two::num;
            cout << n;
            return 0;
       }
    

1. 1. 22

   
   
   

   2. 12

   
   
   

   3. 10.027

   
   
   

   4. 22.027

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   As we are getting two variables from namespace variable and we are adding that.

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15. What is the output of this program?
    

    #include 
        using namespace std;
        namespace One
        {
            int K = 15;
            int L = 11;
        }
        namespace Two
        {
            double K = 4.016;
            double L = 7.6001;
        }
        int main ()
        {
            using One::K;
            using Two::L;
            bool p, q;
            p = K > L;
            q = One::K < Two::L;
            cout << p <<" " << q;
            return 0;
        }
    

1. 1. 15 11

   
   
   

   2. 11 15

   
   
   

   3. 4 7

   
   
   

   4. 7 4

   
   
   

   5. 1 0

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   We are inter mixing the variable and comparing it which is bigger and smaller and according to that we are printing the output.

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