Entry level writing exam questions!

I’ve never heard of this exam until I recieved a letter indicating that I need to fufill this requirement for my UC?!? I’ve been researching around but I couldn’t figure out what the passing score is (I just know it’s out of 6). I would like to know in order to prepare myself and how much I need to study hahaha. Also, if we fail it once, do we retake it in the Fall or do we only take it once? Oh and one last thing, any good literature that you would recommend that would help? Please help and thanks in advance!

http://www.ucop.edu/elwr/

http://www.ucop.edu/elwr/sample.html

http://www.ucop.edu/elwr/faq.html