I have just taken the CCSA practice exam in preparation for my exam. I would not recommend this to anyone.
It took more than a day for pearson VUE to approve my card payment before I could even sit the exam...i think the time limit i had on it was less that 20 hours before it expired.
Anyway the practice consisted of 40 questions in 20 minutes.
There was an explanation field at the top which i believe would give you the answer if you clicked on it? I wouldn't know as i never got the chance. The exam ran out of time before the end I wasn't even given the opportunity to review my answers.
What did I learn? Nothing.
A bit of a con really, $50.00 for something you will not have time to review.... and checkpoint know this.