Here are some solved questions from  HP  Placement Papers

1) What is not a part of OS ?

a)swapper
b)compiler
c)device driver
d)file system

Answer is compiler

2) Which is the protocol used by PING?

a)ICMP
b)HTTP
c)SMTP
d)RTSP

Answer is ICMP

3) Hotmail was founded by?

a)Sabeer Bhatia and Jack Smith
b)Sabeer Bhatia alone
c)Sabeer Bhatia and Bill Gates
d)Sabeer Bhatia and Hang Sen

Answer is Sabeer Bhatia and Jack Smith

4) Which is an Internet standard that extends the format of e-mail to support
* non ASCII text
* Non-text attachments
* Message bodies with multiple parts
* Header information in non-ASCII character sets

a)Multipurpose Internet Mail Extensions
b)Multivariant Internet Mail Extensions
c)Multi Internet Mail Extensions
d)None of the above

Answer is Multipurpose Internet Mail Extensions