Subex Placement Paper -: Programming Questions With Answers

Subex Previous Years Solved Sample Placement Papers

1. The output of the following program is:
   

   
   #include
   main( )
   {
     int i = -1;
     while(i < 5)
     {
   #ifdef _X_printf("%d", i++);
   #endif
     }
   }
           

   A. Compiler error

   B. -1, 0, 1, 2, 3, 4

   C. Infinite loop

   D. 1, 2, 3, 4

2. Ans: Compiler error (Option A)

3. The output of the following program is:
   

   
   #include
   void f(char* p);
   main( )
   {
     char *p = (char*)l;
     f(p);
     printf("%s\n", p);
   }
   void f(char *p)
   {
     char sz[] = "hello";
     p = sz;
   }
           

   A. Runtime error

   B. NULL

   C. hello

   D. Compiler error

4. Ans: Compiler error (Option D)

5. The output of the following program is:
   

   
   #include 
   void f(char **p)
   {
     char *sz = "hello";
     *p = sz;
   }
   main( )
   {
     char *p = "NULL";
     f(&p);
     printf("%s\n", p);
   }
           

   A. Compiler error

   B. Runtime error

   C. hello Answer: Option C

   D. 1

6. The output of the following program is:
   

   
   #include
   main( )
   {
     int n;
     if(n <= -1)
     {
       int x = 1;
     }
     else
     {
       int x = 1;
     }
   }
           

   A. Compiler error Answer: Option A

   B. Unpredictable output

   C. 10

   D. 1

7. The correct declaration of a pointer “func” to function returning a “char” and taking no parameters is:
   

   A. char func( )* func;

   B. char (*func)( ); Answer: Option B

   C. char* ( ) func;

   D. None of the above

8. The output of the following program is:
   

   
   #include
   #define arbit 5
   main( )
   {
     printf("%d\n", arbit);
   }
           

   A. 5 Answer: Option A

   B. 6

   C. Compiler error

   D. Runtime error

9. Determine which of the following are valid identifiers:
   
   • i. Return
   • ii. 123 45 6789
   • iii. Record_1
   • iv. $Tax

   A. iii & iv Answer: Option A

   B. i & iii

   C. i, ii & iv

   D. i & iv