11. Which of the following arithmetic operation can be applied to pointers p and q?
    (Assuming initialization as int *p = (int *)6; int *q = (int *)7;)

1. 1. p / q

   
   
   

   2. p + q

   
   
   

   3. p – q

   
   
   

   4. p * q

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   p – q

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

    #include <stdio.h>
        int main()
        {
            const int num[5] = {11, 21, 31, 41, 51};
            int *ptr;
            ptr = num + 3;
            *ptr = 50;
            printf("%d\n", num[3]);
        }
    

1. 1. 11

   
   
   

   2. 21

   
   
   

   3. 31

   
   
   

   4. 51

   
   
   

   5. 50

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   50

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13. What are the elements present in the array of the following C code?
    

    int num[4] = {10};
    

1. 1. 10, 10, 10, 10

   
   
   

   2. 0, 0, 0, 0

   
   
   

   3. 10, 0, 0, 0

   
   
   

   4. 0, garbage value, garbage value, garbage value

   
   
   

   5. 10, garbage value, garbage value, garbage value

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   10, 0, 0, 0

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14. What are the different ways to initialize an array with all elements as zero?

1. 1. int p = 0,  q = 0,  r = 0;
         int array[5] = {p, q, r};
      

   
   
   

   2. int array[5] = {};

   
   
   

   3. int array[5] = {0};

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Option A, B and C are the different ways to initialize an array with all elements as zero.

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15. Which of the following declaration is illegal?

1. 1. int size = 5;
         int num[size] = {11, 12, 13, 14, 15};
      

   
   
   

   2.  int p = 10, q = 11, r = 12;
         int num[4] = {p, q, r, s};
      

   
   
   

   3. int size = 10;
         int num[size];
      

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   int size = 5;
      int num[size] = {11, 12, 13, 14, 15};
   

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