66. What is the scope of a function?

1. 1. From the point of declaration to the end of the file in which it is defined

   
   
   

   2. Any source file in a program

   
   
   

   3. From the point of declaration to the end of the file being compiled

   
   
   

   4. Whole source file in which it is defined

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   From the point of declaration to the end of the file being compiled

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67. What is the scope of an external variable?

1. 1. From the point of declaration to the end of the file being compiled

   
   
   

   2. Any source file in a program

   
   
   

   3. From the point of declaration to the end of the file in which it is defined

   
   
   

   4. Whole source file in which it is defined

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   From the point of declaration to the end of the file being compiled

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68. What will be the output of the following C code (after linking to source file having definition of arrayA)?
    

    #include <stdio.h>
        int main()
        {
            extern arrayA[];
            printf("%d\n", arrayA[0]);
        }
    

1. 1. Compile time error due to multiple definitio

   
   
   

   2. Compile time error because size of array is not provided

   
   
   

   3. Compile time error because datatype of array is not provided

   
   
   

   4. Value of arrayA[0];

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Compile time error because datatype of array is not provided

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69. What will be the output of the following C code (without linking the source file in which arrayA is defined)?
    

    #include <stdio.h>
        int main()
        {
            extern arrayA[];
            printf("Interview Mania\n");
        }
    

1. 1. Linking error due to undefined reference

   
   
   

   2. Compile time error because datatype of array is not provided

   
   
   

   3. Compile time error because size of array is not provided

   
   
   

   4. Interview Mania

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Interview Mania

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

    #include <stdio.h>
        int n;
        int main()
        {
            extern int n;
            if (p == 0)
                printf("Scope rules follow here\n");
        }
    

1. 1. Scope rules followed

   
   
   

   2. Nothing will be printed as value of n is not zero because i is an automatic variable

   
   
   

   3. Compile time error due to multiple declaration

   
   
   

   4. Compile time error due to not defining type in statement extern n

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Scope rules followed

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