Did I miss anything on Head First EJB book???

[Chee-Chan Keng]

I just started reading the book but I couldn't pass all 3 mock exams on first chapter
I have a few questions:
1. On the mock answers (pg 60), it mentioned spec 30, 25-26, where are these info on EJB 2.0 spec??? what page are they in my spec named "ejb-2_0-fr2-spec.pdf"??
2. The same page also mentioned MDB, what is MDB?
3. The 3 mock questions really kicked my confidence, should I read through J2EE and EJB spec before reading this book? Should I do the J2EE & EJB tutorials provided by Sun first? geez... I hope the answer is no...

Thanks...

[Christopher Arthur]

Hi,
I had a similar question last week. Some of us agree that the the questions in the mock exams can't always be answered from the chapter..Though I'm up to chapter 10 now, and I am finding that some of the earlier questions are easier to answer now. I've been told that people can pass the exam by studying Headfirst closely and using the spec very little. I think that the authors intend to use the chapter exams as a way of building upon the previous material. Good luck!
C. Arthur

[Christopher Arthur]

1. On the mock answers (pg 60), it mentioned spec 30, 25-26, where are these info on EJB 2.0 spec??? what page are they in my spec named "ejb-2_0-fr2-spec.pdf"??
The referenced pages are chapter elements 1.2 and 2.3.
2. The same page also mentioned MDB, what is MDB?
MDB = Message-Driven Bean

[MaxPwr Pow]

MDB MessageDrivenBean. With this book, you have to first read the whole thing, do the exercises, and then read it again - if you're new to EJB.

[Chee-Chan Keng]

Got it, thanks!