Hewlett Packard Placement Question Papers

Hewlett Packard Placement Question Papers

General section

Computer science general, c/c++ section, Java section ,The question paper had 48
questions to be answered in 1hr. Time will be quite sufficient. They have different
sets of question papers. .

1 General section : computer science general knowledge
2. Computer science general: simple questions

1. HP acquired this company in 2002. Which is the company
a) Compaq b) Dell c) option 3 d) Option4
Ans: a

2. What does 3G denote
a) 3rd generation mobile communication b) 3rd generation computer languages
c) option 3 d) option4
Ans: a

3. An application program that is used by the users to get the inofrmation from the
backend of some application like databases:
a) application server b)proxy server c)database server d)option 4
Ans: database server

4. Which of the following is not true about the e-mail
a) It can be accessed by a client program using POP
b) It can be accessed by a client program using imap protocol
c) option 3
d) option 4
Ans: I don’t remember the answer but first 2 are true.

5. Some quesion regarding the company and who developed it ( the thing to remember
is that Apple produce Macintosh computers).

c/c++ section: questions on c/c++, programs o/p etc.

1 main( )
{
unsigned int i=3;
while( i >=0)
printf( “%d", i–);
}
how many times will the printf stmt be executed?
a)0 b)3 c)4 d)infinite
Ans: I think the answer is infinite, b’cos ‘i’ is an unsigned integer and it will not
decrement below ‘0′ and hence end up in an infinite loop.(yes, i checked and it
is getting stuck in an infinite loop)

2. main( )
{
int x,y, z;
x=2;
y=5;
z= x+++y;
printf("%d %d %d", x, y z);
}
a)3 5 7 b)option 2 c)option 3 d)option 4
Ans: a

3 # define swap(a,b) temp=a; a=b; b=temp;
main( )
{
int i, j, temp;
i=5;
j=10;
temp=0;
if( i > j)
swap( i, j );
printf( “%d %d %d", i, j, temp);
}
Ans: On compiling i got ans 10, 0, 0. I did not understand the concept. Please
expalin this to me.

4. Java section: questions on java related stuff.
1) Java was initially code named as:
a)Oak b)green c)miller d)option4
Ans: Oak

5. What is not true about the following statements about java.
a) it is compiled using javac compiler
b) the compiled files have .class extension.
c) such files cannot be transfered from one comp to another.
d) they use the java interpreter
Ans: c

6. Why is the synchronize used?
a) to initialize multiple objects b)to lock an object c)option3 d)option 4
Ans: b (probably)

Hewlett Packard Placement Question Papers

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………