1. What will happen when we use void in argument passing?

1. 1. Maybe or may not be return value to its caller

   
   
   

   2. It will return value to its caller

   
   
   

   3. It will not return value to its caller

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   As void is not having any return value, it will not return the value to the caller.

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2. What is the output of this program?
   

   #include 
       using namespace std;
       int add(int p, int q);
       int main()
       {
           int k = 7, L = 9;
           cout << add(k, L) << endl;
           return 0;
       }
       int add(int p, int q )
       {
           int sum = p + q;
           p = 10;
           return p + q;
       }
   

1. 1. 7

   
   
   

   2. 9

   
   
   

   3. 10

   
   
   

   4. 19

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   The value of a has been changed to 10, So it returns as 19.

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3. What is the output of this program?
   

   #include 
       using namespace std;
       void square (int *p)
       {
   	*p = (*p + 3) * (*p);
       }
       int main ( )
       {
   	int n = 15;
           square(&n);
   	cout << n;
   	return 0;
       }
   

1. 1. 207

   
   
   

   2. 270

   
   
   

   3. 15

   
   
   

   4. 3

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   We have increased the x value in operand as p + 1, so it will return as 270.

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4. What is the output of this program?
   

   #include 
       using namespace std;
       long fact (long p)
       {
           if (p > 1)
               return (p * fact (p + 1));
           else
               return (1);
       }
       int main ()
       {
           long n = 6;
           cout << n << "! = " << fact ( n );
           return 0;
       }
   
   

1. 1. 1

   
   
   

   2. 6

   
   
   

   3. segmentation fault

   
   
   

   4. compile time error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   As we have given in the function as p+1, it will exceed the size and so it arises the segmentation fault.

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5. What is the use of the indentation in c++?

1. 1. r distinguishes between comments and outer data

   
   
   

   2. distinguishes between comments and code

   
   
   

   3. both a and b

   
   
   

   4. to write multi line comment in c++

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   the use of the indentation in c++ is distinguishes between comments and code.

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