Take A 30 min C# Test (non-school related)

I recently took this test and scored an 82%, bummer. My (potential) employer is allowing me to take the test once more, I liked to get 90% or higher. This is a non-school related test for entry-level position working directly under a senior .net developer. I've been studying diligently but I must take the test within the next week. the test is 30 minutes long -------> 3 Requirements <-------- 1. use a proxy so they cant see where you're IP is from 2. score 90% or higher 3. take screen shots of the questions, zip them and send them to me.