21. Which of the following uses structure?
    

1. 1. Linked Lists

   
   
   

   2. Binary Tree

   
   
   

   3. Array of structures

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Linked Lists, Array of structures and Binary Tree uses structure.

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22. What is the correct syntax to declare a function fun() which receives an array of structure in function?
    

1. 1. void fun(struct *num[]);

   
   
   

   2. void fun(struct num);

   
   
   

   3. void fun(struct *num);

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   void fun(struct *num);

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23. What will be the output of the following C code? (Assuming size of int be 4)
    

    #include <stdio.h>
        struct Count
        {
            int n1;
            int n2;
            int n3;
        } cnt[] = {0};
        main()
        {
            printf("%d", sizeof(cnt));
        }
    

1. 1. 16

   
   
   

   2. 12

   
   
   

   3. 4

   
   
   

   4. Compilation Error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   12

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

    #include <stdio.h>
        struct Employee
        {
            char *name;
        };
        struct Employee emp[2];
        void main()
        {
            emp[0].name = "Ajit";
            emp[1] = emp[0];
            printf("%s %s", emp[0].name, emp[1].name);
            emp[1].name = "Sujit";
            printf(" %s %s", emp[0].name, emp[1].name);
        }
    

1. 1. Ajit Ajit Ajit Sujit

   
   
   

   2. Sujit Ajit Ajit Ajit

   
   
   

   3. Sujit Ajit

   
   
   

   4. Compilation Error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Ajit Ajit Ajit Sujit

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

    #include <stdio.h>
        struct Worker
        {
            char *name;
        };
        struct Worker w1[2], w2[2];
        void main()
        {
            w1[0].name = "Imaraj";
            w1[1] = w1[0];
            w2 = w1;
            printf("%s%s", w2[0].name, w2[1].name);
        }
    

1. 1. Imaraj

   
   
   

   2. Compilation Error

   
   
   

   3. Garbage value

   
   
   

   4. Nothing

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   Compilation Error
   

   main.c: In function ‘main’:
   main.c:11:12: error: assignment to expression with array type
            w2 = w1;
   

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