Determined2bCPA,
The ethics exam was unusually easy. It is an open-book test (and I didn't notice a time limit on the exam). There were 40 MC questions that were listed chronologically throughout the study course. In comparison to REG, the ethics exam was a piece of cake. I opened up the browser with the test and then opened the CD-Rom course. I picked a question and then went through the course until I found it. After finding the answers, move on to the next question. The next answer will be later in the course.
It took me about an hour to complete the entire course. I'm sure you would benefit by watching the entire course and then taking the exam, but I'm not that patient. I don't think the exam tells you which questions you missed (until you get a passing score) so write down the questions that you guessed on and, if you don't pass the first time, you can go back to those questions without having to redo the entire test. You have three attempts to get a 90 percent.
In short, the exam was very easy. I didn't review at all, just opened the course and took the test. I'd apportion about two hours to get it done if you don't want to go through the course first. Good luck!