This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
I thought you were just asking for some example questions. I don't actually know if I know the answers, there are questions which have been floating around in my brain. You might consider doing some of the online tutorials as a way of getting into the groove.
> limitations, or as yet unaddressed features, of web services which are slowing its wider acceptance. 1] WSDL versioning 2] Security 3] Interoperability