Stephen is correct!
After the book was published, Sun / Oracle removed the Serialization topic from the exam.
What we have discovered however is that not all prometric centers update the exams at exactly the same time. So there is a remote chance that a few prometric centers *might* still be using an older version of the exam. I don't know how to verify that ahead of time? Perhaps you can call your local prometric center and ask which set of objectives they're using? Perhaps that would work?
For sure, if you go to the Oracle website you can see the current set of objectives. Not only has Serialization been removed since K&B was published, but the 4th
Thread objective, the one conerning wait and notify, has also been removed.
hth,
Bert