HP Latest PLACEMENT PAPER
1>General section : Computer science General knowledge questions

2> Computer science general: historical and simple questions

1) HP acquired this company in 2002. Which is the company
a)Compaq b)Dell c)  d)
Answer: a  HP acquired compaq in 2002.

2) what does 3G denote
a) 3rd generation mobile communication b) 3rd generation computer languages c)  d)
Answer: 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)
Answer: 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).

5) What is X.25?
a)option 1 b)option 2 c)option 3 d)option 4
Ans: find out??:-)
>>> napster app is used for : downloading music
3> C and C++ language questions and programs:
You have to find out either the output or the error in the following programs.

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: Some pretty easy java development related questions:
1) Java was initially code named as:
a)Oak b)green c)miller d)option4
Answer:  Java was initially code named as Oak
2) 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 computer to another.
d) they use the java interpreter
Ans: c
3) Why is the synchronize used?

a) to initialize multiple objects b)to lock an object c)option3 d)option 4
Ans: b (probably)

Some HP Java Test Questions:

1. package java.lang;
// Ans:! Runtime gives error ( test it)

2: class HPTest2
{ public static void main(String args[])}
{ String x=”sdfsd”; System.out.println(”Hello”); } }

2 class HPTest
{static HPTest x;public static void main(String args[]) { // below line not given //x=new HPTest(); if not this line Null pointer exeception x.foo();
void foo()
{ System.out.println(”Hello”); }

3: class A
{ A(int x)
{System.out.println(” x=” + x ); }
A(int x,int y)
{ System.out.println(” x=” + x + ” y =” + y); }
class HPTest4
{ public static void main(String args[])
{ A a=new A(1);
A b=new A(2,3);
A c=new A();
}
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