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

     #include <stdio.h>
        int main()
        {
            char buff[25];
            stderr = stdin;
            fscanf(stderr, "%s", buff);
            printf("%s\n", buff);
        }
    

1. 1. Whatever user types

   
   
   

   2. Compilation error

   
   
   

   3. Undefined behaviour

   
   
   

   4. Nothing

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Whatever user types

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

    #include <stdio.h>
        int main()
        {
            FILE *fp = stdout;
            stderr = fp;
            fprintf(stderr, "%s", "Interveiw Mania");
        }
    

1. 1. Undefined behaviour

   
   
   

   2. Garbage value

   
   
   

   3. Interveiw Mania

   
   
   

   4. Compilation Error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Interveiw Mania

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

    #include <stdio.h>
        int main()
        {
            FILE *fp;
            char ch;
            int num = 0;
            fp = fopen("file1.txt", "r");
            while (!feof(fp))
            {
                ch = getc(fp);
                putc(ch, stdout);
            }
        }
    

1. 1. Prints to the screen content of file1.txt completely

   
   
   

   2. Prints to the screen some contents of newfile1.txt

   
   
   

   3. Compilation error

   
   
   

   4. Segmentation fault

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Segmentation fault

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14. Within main, return expr statement is equivalent to ________
    

1. 1. exit(expr)

   
   
   

   2. ferror(expr)

   
   
   

   3. abort(expr)

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   exit(expr)

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15. What is the output of the following C code if there is no error in stream fp?
    

    #include <stdio.h>
        int main()
        {
            FILE *fp;
            fp = fopen("file1", "w");
            printf("%d\n", ferror(fp));
            return 0;
        }
    

1. 1. 1

   
   
   

   2. Compilation Error

   
   
   

   3. 0

   
   
   

   4. Garbage value

   
   
   

   5. Any nonzero value

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   0

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