Hi Prasanth,
For part1 it took my around 40 -50 days of serious preparation approximately 4-5 hours per day . I have gone through the below books and some materials in yahoo groups.
1) Sun Certified Enterprise Architect for J2EE� Technology Study Guide-Mark Cade Simon Roberts
2) Sun Certified Enterprise Architect for J2EE� stuy guide - Osborne McGrawhill
and some ramu notes , nutshell material from the yahoo groups,
finally done some whizlabs mock exams.
For part2 - I followed the discussion in
java ranch forums.
1)http://java.sun.com/blueprints/patterns/catalog.html,
2)Designing Enterprise Applications By Sun
and 3) case study from cade roberts book.
I have used Jude communtity version for deployment ,class , sequence and component diagrams.
Regards,
Srikanth.