81. Which of the following is an external variable in the following C code?
    

     #include <stdio.h>
        int function(int p)
        {
            int q;
            return q;
        }
        int main()
        {
            int r;
            function(r);
        }
        int s;
    

1. 1. p

   
   
   

   2. q

   
   
   

   3. r

   
   
   

   4. s

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   s

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82. Global variables are ____________.

1. 1. External

   
   
   

   2. Internal

   
   
   

   3. Both External and Internal

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   External

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83. Functions in C are always _________.

1. 1. External and Internal are not valid terms for functions

   
   
   

   2. Internal

   
   
   

   3. External

   
   
   

   4. Both Internal and External

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   External

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84. What will be the output of the following C code?
    

    #include <stdio.h>
        int n = 15;
        void main()
        {
            int n = 5;
            printf("%d ", n);
            {
                int n = 10;
            }
            printf("%d", n);
        }
    

1. 1. 15 5

   
   
   

   2. 5 15

   
   
   

   3. 10 5

   
   
   

   4. 5 10

   
   
   

   5. 5 5

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   5 5

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85. What will be the output of the following C code?
    

    #include <stdio.h>
        int num = 10;
        void main()
        {
            int num = 5;
            printf("%d ", num);
            {
                num = 6;
            }
            printf("%d", num);
        }
    

1. 1. 10 5

   
   
   

   2. 5 10

   
   
   

   3. 6 5

   
   
   

   4. 5 6

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   5 6

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