100 questions for two hours.
 
50*2mark = 100 mark
50*1mark = 50 mark.
and negative mark of 0.25.  
 
for example:

zambio process, orphan process, race conditions, ipc in real time system, daemon process and how to creat it, in os.
http://www.ChetanaS.com
write a c/c++/java program to convert ip address to physical address.
write a c/c++/java program to find crc.
 
question related to synchronous connection and BGP, OSPF, IP, TCP PROTOCOLS and lot of unknowns were there.  haming distance, problem related to signal noise ration. etc.