Think more of this as a 30,000 foot view of the landscape rather than the 3 foot view. The idea is to understand the concepts and basic structure, rather than the nitty-gritty of the API - an architect (in Sun's view) does not need to know how to create an EJB, for instance, but is certainly expected to understand the types of EJBs and their useages. You're not expected on the SCEA to go to the level of implementation of the code.
In short, the questions are more on the concepts of each knowledge area, rather than the concrete application of them.
Theodore Jonathan Casser
SCJP/SCSNI/SCBCD/SCWCD/SCDJWS/SCMAD/SCEA/MCTS/MCPD... and so many more letters than you can shake a stick at!