With "dumps", people usually mean questions that are illegally copied from the real exam. Dumps are not only illegal (because you are breaching the copyright on the exam), it also means you are cheating - just learning the questions and answers of the exam, instead of learning how to program in
Java.
We don't want to encourage cheating on JavaRanch and we cannot allow requests or offers of illegal material (that might bring JavaRanch into legal trouble).
There are plenty of legitimate resources available to learn for the
SCJP exam; many good books and a lot of free or non-free online mock exams. Have a look at the
JavaRanch SCJP FAQ for more information.