I passed the Foundation test last week, and used both this book and the PDF version to prepare, plus an ILOT course. There are two document sets from The Open Group to help you prep for the exam - the printed set and the PDF versions. The PDF's are, as far as I know, only available from The Open Group. The book was a VERY GOOD prep guide, although not quite as good as the PDF doc set.
There were three - yes, three - questions on the exam that were covered in the PDF and were *not* in the print edition. As in I did side by side comparisons on both docs, right after the test, because I've got to sit the T9 Certified exam soon. Here's the really disappointing thing - I bought what I thought was the most recent print edition --- eight months ---- after I bought the PDF. The Open Group PDF set is more complete.
All is not lost, however; the print edition is, perhaps 94% to96% identical sentence for sentence to the PDF version.