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

   #include <stdio.h>
       double n = 10;
       int main()
       {
           int n = 6;
           printf("%d", n);
       }
   

1. 1. Compilation Error

   
   
   

   2. Runtime Error

   
   
   

   3. 6

   
   
   

   4. 10

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   6

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2. Global variables are ____________.

1. 1. External

   
   
   

   2. Internal

   
   
   

   3. Both External and Internal

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   External

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3. Which of the following is an external variable in the following C code?
   

    #include <stdio.h>
       int function(int p)
       {
           int q;
           return q;
       }
       int main()
       {
           int r;
           function(r);
       }
       int s;
   

1. 1. p

   
   
   

   2. q

   
   
   

   3. r

   
   
   

   4. s

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   s

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

    #include <stdio.h>
       int main()
       {
           printf("%d", num++);
       }
       int num = 15;
   

1. 1. 15

   
   
   

   2. Garbage value

   
   
   

   3. Runtime Error

   
   
   

   4. Compilation Error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Compilation Error
   

   main.c: In function ‘main’:
   main.c:4:22: error: ‘d’ undeclared (first use in this function)
            printf("%d", d++);
                         ^
   main.c:4:22: note: each undeclared identifier is reported only once for each function it appears in
   

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5. Which part of the program address space is ptr stored in the following C code?
   

   #include <stdio.h>
       int *ptr = NULL;
       int main()
       {
           int n = 0;
           ptr = &n;
           return 0;
       }
   

1. 1. 0

   
   
   

   2. Code/text segment

   
   
   

   3. Data segment

   
   
   

   4. Bss segment

   
   
   

   5. Stack

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Data segment

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