Sonata Placement Paper -: Technical Questions With Answers

Sonata Previous Years Solved Sample Placement Papers

1. What is the difference between the following declarations?

   const char *s;

   char const *s;

   Ans. No difference

2. What would be the output of the following program?

   
   main() {
     char near * near *ptr1;
     char near * far *ptr2;
     char near * huge *ptr3;
     printf("%d %d %d", sizeof(ptr1), sizeof(ptr2), sizeof(ptr3));
   }
       

   A. 1 1 1

   B. 1 2 4

   C. 2 4 4

   D. 4 4 4 Answer: Option D

3. If the following program (myprog) is run from the command line as myprog friday tuesday sunday, what would be the output?

   
   main(int argc, char* argv[]) {
     printf("%c", **++argv);
   }
       

   A. m

   B. f Answer: Option B

   C. myprog

   D. friday

4. If the following program (myprog) is run from the command line as myprog friday tuesday sunday, what would be the output?

   
   main(int argc, char* argv[]) {
     printf("%c", *++argv[1]);
   }
       

   A. r Answer: Option A

   B. f

   C. m

   D. y

5. If the following program (myprog) is run from the command line as myprog friday tuesday sunday, what would be the output?

   
   main(int argc, char* argv[]) {
     while (sizeofargv)
       printf("%s", argv[--sizeofargv]);
   }
       

   A. myprog friday tuesday sunday

   B. myprog friday tuesday

   C. sunday tuesday friday myprog Answer: Option C

   D. sunday tuesday friday

6. Point out the error in the following program:

   
   main() {
     int a = 10;
     void f();
     a = f();
     printf("\n%d", a);
   }
   void f() {
     printf("\nHi");
   }
       

   Ans. The program is trying to collect the value of a void function into an integer variable.

7. In the following program, how would you print 50 using p?

   
   main() {
     int a[] = {10, 20, 30, 40, 50};
     char *p;
     p = (char*) a;
   }
       

   Ans. printf("\n%d", *((int*)p + 4));