Yes, I have taken the 7.4 exam for CSA. It is similar to the previous versions. Unfortunately there are no practice exams for the 7.4 versions of the exams. However in order to prepare for the exam make sure to take a look at the Exam Blueprint for CSA 7.4. Here you will find a breakdown of the core competencies you will be tested over. I would make sure to go through all the exercises and make sure you can answer all the quiz questions in the course.
My apologies as the link points to the most current exam available. Here is a link to the Exam BluePrint for CSA 7.4. It is a tough exam so once again I would make sure you put in the time to study before sitting for the exam.