04-05-2018 05:26 AM
Many of your questions are answered directly on the CCA Spark and Hadoop Developer Exam (CCA175) page. Cloudera does not have a practice test but if you look at the required skills on the page it outlines what tasks you need to be able to perform to pass the exam.
I also suggest looking over the certification FAQ page which goes into further details on the exam.
Cy Jervis, Community Manager