I've heard that the very popular DB2 assessment exams are still free through Self Test Software. Register to take the exams via this link:
Of course, they won't be free for long! I know this isn't happy news for anyone, but the exams are very, very popular, so we are unable to maintain them as free for the time being. The fee that will be charged is low at $10 per try, but I have been granted permission to give tips through my blog.
What I plan to do is to post an actual question or two from one of our assessment tests and point to the documents where you can find the answer to the question. I will continue to do this until I've covered a good portion of the questions on the assessment test.
I plan to begin by going through the assessment test for Exam 703 DB2 V8 Application Development Family. I've chosen this exam because I think there are many people who regularly visit developerWorks who are capable of easily passing this exam.
Come and take a look on Monday to see the first set of questions in this series.