The questions were easier than the Self-test questions in the K&B book.
One thing I noticed was: Each line of code will have a Line Number. So, if you can see only the code snippet, e.g. the 1st line you can see is say Line 10th of the actual code, then you can safely assume that all the required imports are there in the 1st 9 lines of code. So, please don't mark Compilations Fails for the snippets only questions for the reason that you can't see the import statements.
wait(), notify() and notifyAll() all are no longer in the course. However, you might need to have a brief idea on them.
Best of luck for the exam.