HP Placement Paper

Question Consist of  4 parts.                  Duration of exam is 60 min.

• C---------20Q

• C++ ----15Q

• Unix-----15Q

• Apptitude--15Q

                             C  And C++

1. i=23, j=4, c=0;
   c=i++-++j;
   o/p?

2. #define CUBE(x)     x*x*x
   #define MUL3(x,y) 3*x*y
   #define ADD(x)       x+y
   some statement maikng use of the preprocessors defined above............find o/p.

3. virtual destructors r used  for ?

4. 2 questions on friend functions & classes

5. char c[]="123456789";
    i=4;
   printf("%c %c", c[i], i[c]);
   o/p?
   one more question on these lines.

6. int *ptr;
    p=0;
    p++;
    printf("%u", p);
    o/p?
   a. 0  b. garbage value  c. 4  d. none of the above

7. double i=0.0;
    switch(i)
       {
         case 0.0: 
         printf("jgdj");
         case 1.0:
         printf("ptoy");
                break;
       default:
              printf("hdfv");
   }
   o/p?

8. volatile int i;
   in d above statement, is "volatile"
   a. a type declaration b. type qualifier c. storage class d. none of the above

                        Unix

1. "bash" is a kind of shell in UNIX

2. primitive flavours of unix
   options : a. BSD &Sys V b. LINUX & BSD c..

3. which of the folllowing is used 4 redirection in UNIX?      >, |, <, ^

4. wot is d UNIX terminology 4 multi-tasking?
   a. time slicing b. pre-emptive ....... c. time division d.......

5. In UNIX if You try accessing a directory  for which u dont have permission, wot message is displayed?
   a. permission denied   b. invalid user    c. access denied   d.........