Well today I passed my SCWCD with a 89% score, and this is, I think, in a big part because of javaranch forum. I would like to give thanks everybody. Now I will give my advice to nobody who wants pass this cert. Read carefully the servlet2.3 and jsp1.2 specs. Learn deployment descriptor and taglib descriptor wery well. Design Patterns. Custom Tags. Sorry for my english and thank you everybody in JavaRanch.