Find a copy of The Perl Cookbook and the source for the examples therein (see ora.com for both). That's got a nice variety of fairly simple yet idiomatic short samples.

You might try browsing the Perlmonks Q&A and Tutorials sections.

Yup, that book's old, but still very relevant. Hey, merlyn, when do we see a second edition? :-)

P.S. I'm a big believer now in "open-book" testing. It's more important to know how to "use information" than it is to "memorize information".

Thanks for the advice everyone, I already have the "camel book" and yes the test is on a computer. I am just practicing as hard as possible and I doubt we can use the perldoc in the exam (but I my ask him).

One thing to do is try reading seekers of perl wisdom, and solving other people's problems. Then, look at the solutions other people have posted. Some of the questions, you'll find, are well-asked, the kind of thing you're likely to see on a test. Some of the questions are, well, not. Seeing this will help clarify your thought processes, which will help you whenever you're trying to reason -- inlcuding on a test. For a purticularly nice problem, try A list of warnings by category -- from the point of view of a coding question.

One thing to do is try reading seekers of perl wisdom, and solving other people's problems.

That's an excellent answer. I'd also offer that few professors in undergrad classes test for things they didn't cover in class. You should go back through all your notes and do the work therein again. And if you don't have enough confidence in your own notes, ask a classmate to meet you at the copy shop and swap notes so you have another set from which to work.

If you already know some Perl, I'd suggest you to buy samtregar's Writing Perl modules for CPAN. I read it for writing a review for an Italian magazine, and I liked so much the way it explained how to write good modules that I bought a copy to gift it to a colleague!

Maybe you don't need it yet, but if you are going to write more perl, you are going to.