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

     #include <stdio.h>
        static int var = 15;
        void main()
        {
            var = 19;
            {
                int var = 14;
            }
            printf("%d", var);
        }
    

1. 1. 15

   
   
   

   2. 14

   
   
   

   3. 19

   
   
   

   4. Compilation Error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   19

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

    #include <stdio.h>
        int *p;
        int main()
        {
            if (p == 0)
                printf("Hey\n");
            return 0;
        }
    

1. 1. Hey

   
   
   

   2. Compilation Error

   
   
   

   3. Hey only if NULL value is 0

   
   
   

   4. Nothing

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Hey only if NULL value is 0

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

    #include <stdio.h>
        int *ptr;
        int main()
        {
            if (ptr == NULL)
                printf("Right\n");
            return 0;
        }
    

1. 1. Right only if NULL value is 0

   
   
   

   2. Compilation Error

   
   
   

   3. Nothing

   
   
   

   4. Right

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Right

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74. Property of the external variable to be accessed by any source file is called by the C90 standard as __________.

1. 1. global linkage

   
   
   

   2. global scope

   
   
   

   3. external scope

   
   
   

   4. external linkage

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   external linkage

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75. 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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