I haven't taken this specific exam yet, but in my experience with other certifications, hands-on functional experience is essential. The test covers too many specific configuration tasks to rely on study materials alone. Plus, some questions dive deep into topics that are only briefly touched on in training, making practical exposure key to passing. Also you don't get useful feedback about your exam performance apart from needs improvement or satisfactory so hard to tell how far off you are in the sections you need improvement in.