Responsible venders card??

So I have to get my RV in order to work at my new job (a grocery store) and am going tomorrow to the alcohol and noise place. My gm said I have to take a three hour class and then I will get it but I just found out there is also a test. Has anyone had to do this before? Was it easy? I’m in Louisiana if that helps. I’m really scared of failing it and not being able to work.