Congratulations Ritwik
Thanks for the link for the Rational test.
If you have already passed Test 486, I believe that is more than enough to present yourself as a person who knows about UML.So I wouldn't recommend the OOAD test from Rational.
But, I think it would be interesting to take the other tests by Rational on their products/Technologies RUP,
Rose 2000e, Test Studio and ClearQuest, especially since these products are the best in the market so far!
Would like some comments from my fellow JavaRanchers!
Thanks,
Sandeep