I was really surprised when I saw the results, since I had been unsure about my answers to 4-5 of the questions, but I guess I guessed correctly
Many thanks go out to Kathy Sierra and Bert Bates, whose book made this possible, as well as Mikalai Zaikin whose study guide (http://java.boot.by/bcd-guide/) made for an excellent last day review!
To study, I read through Head First EJB twice - once off and on over a period of 2.5 months (yeah, I know...), and the second time over the holiday week which I took off work. I paid special attention to memorizing the interface APIs, deployment descriptor elements, and which methods can get called from where. I didn't take the Final Mock Exam until after the second read-through (got 85%). This was the day before the exam. Before going to bed I reviewed Mikalai's study guide, and the following morning I reviewed the APIs and the DD, and answered again all the Mock Exam questions I had problems with.