@abdel I am not sure what you are asking… but let me see if I can explain a little better.
The practice tests are free tests to practice your knowledge that assess how prepared you are to take the new certification exams. They are relevant for the current exams and you should go through them if you want to get certified in the new program.
If you got certified in the legacy program in 2018, and are looking to get certified again in the new program, you should still go through the exam description documents, recommended training and of course the practice tests before you take the new exam again. You will need to update your knowledge and test it through these practice tests.
Please note that a PRACTICE TEST is different from a PRACTICAL EXAM, which was the second part of the legacy certification you took, in case you may be confusing the terms. The new exams don’t have a practical part, just multiple choice, drag and drop and simulation based questions that can be found in these practice tests I keep mentioning:
By practice tests I mean: https://uipath.onlinetests.app/assess.aspx?aid=UIPATH-RPAV1-PT&apass=uippassword and https://uipath.onlinetests.app/assess.aspx?aid=UIPATH-ARDV1-PT&apass=ARDpassword.
Hope this is what you are looking for, if not please give me more details around what exactly you are trying to understand. Thank you.