11. The name of the variable used in one function cannot be used in another function.

1. 1. May be

   
   
   

   2. True

   
   
   

   3. False

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Since the scope of the variable declared within a function is restricted only within that function, the same name can be used to declare another variable in another function.

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

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

1. 1. 10

   
   
   

   2. 0

   
   
   

   3. Compilation Error

   
   
   

   4. Depend on compiler

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Compilation Error
   

   main.c: In function ‘main’:
   main.c:4:9: warning: implicit declaration of function ‘A’ [-Wimplicit-function-declaration]
            A();
            ^
   main.c:5:22: error: ‘n’ undeclared (first use in this function)
            printf("%d", n);
                         ^
   main.c:5:22: note: each undeclared identifier is reported only once for each function it appears in
   main.c: At top level:
   main.c:8:10: warning: conflicting types for ‘A’
        void A()
             ^
   main.c:4:9: note: previous implicit declaration of ‘A’ was here
            A();
            ^
   

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13. Can variable p be accessed by functions in another source file?
    

    #include <stdio.h>
        int p;
        int main()
        {
            printf("%d\n", p);
        }
    

1. 1. No

   
   
   

   2. Yes

   
   
   

   3. Depends on the type of the variable

   
   
   

   4. Only if static keyword is used

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   Yes

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14. 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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15. 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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