I agree with Karine's point. I don't think there are any "trick" questions. Most of the exam is based on real-world use cases, so if you have a good understanding of how the features work, you can often eliminate the incorrect answers and arrive at the right one.
For anyone preparing, I'd recommend completing the self-study learning path, taking notes on the key concepts, and then practicing with the Practice Exam available in Webassessor:
https://www.webassessor.com/#/tw-candidate/twExamRegistration

In addition to the knowledge checks included in the self-study modules, the Practice Exam is a great way to become familiar with the style of the certification questions and refine your exam-taking experience.
I struggled a bit with the exam because WFM isn't my main area of expertise. Most of my experience has been explaining WFM features to customers rather than performing implementations or troubleshooting, so I had to think carefully through some of the use-case questions.
Even so, following this study approach helped me pass the certification. Now I'm getting ready for my recertification.
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Raphael Poliesi
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