This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
The exam will not ask for which property is valid/invalid for particular annotation. But you should identify the purpose of the property mentioned in the question. The question are very clear and does not ask for the exact syntax for particular annotations. The concentration is the usage is correct or not for particular situation.