This is regarding the questionare:
There were around 4 questions on Design Patterns, one of them was weird , asking about pros and con..
There were around 8 questions on Proxy/Firwall and around 5 on Applets.
EJB-flooded...around 12 to 15
Protocols-around 4, try reading IIOP as much as you can.
The test started with the hard ones(Proxy/Firewall( and ended with much easier ones)..
Hope this helps.