Instruct: Classify a given review into positive or negative sentiment.
Query: Not good enough.

Might be useful for people who don't need to complete certification requirements. Lots of errors, ommissions & largely incomplete in terms of the exam materials. I failed the Infrastructure exam based on this coursework & only after buying the Sybex materials, did I find the relevant study material. Seriously, the books are MISSING whole areas which you will NEED to cover for the exam. They're just not enough. Don't bother unless you need a large paperweight.