Here is the recent response I got from Sun Education regarding this.
So it's EJB1.1 for now (at least for SCEA Part I).
This is an important issue for lots of the scenario based questions, where you usually have to go for Bean Managed Persistence to optimise performance and handle complex data types. However once the exam moves to EJB2.0 you will need to consider the possibility of using Container Managed Persistence, Container Managed Relationships and local bean interfaces.
> Thank you for inquiring about our Java Architect
> Exam. The current architect
> exam was written for J2EE 1.2 which covers EJB 1.1.
> The objectives are listed on
> the following website:
> Please also visit the Sun Certification website.
> Also, for further study material, Sun endorses "Sun
> Certified Enterprise
> Architect for J2EE Technology," by Mark Cade and
> Simon Roberts.
> We will be updating this exam within the next 12
> months, however we do not have
> a specific release date at this time. Please stay
> posted to our Certification
> URL for any updates.
> Best of luck,
> The Certification Team