The ITIL 4 Foundation topics that trip up most first-time takers

Passed ITIL 4 Foundation last week. Figured I'd write up the stuff that actually tripped me up, since most of the "study tips" posts I found were pretty generic.
Quick background: no formal ITSM experience going in, just general IT support work. So a lot of this was new vocabulary more than new concepts.

First thing that got me: the guiding principles. There are seven of them, and on paper they seem simple, "focus on value," "start where you are," that kind of thing. But the exam likes to test whether you can tell two principles apart when a scenario could technically fit either one. I mixed up "collaborate and promote visibility" with "think and work holistically" more than once in practice.

Second one: the four dimensions of service management. Organizations and people, information and technology, partners and suppliers, value streams and processes. Not hard to memorize the names, but the exam questions describe a situation and expect you to identify which dimension is being neglected. That takes actually understanding what each one covers, not just listing them.

Third, and probably the biggest one for me: telling the service value chain apart from the service value system. These sound almost interchangeable if you're skimming, but they're not the same thing, and the exam definitely expects you to know the difference. The value chain is the six activities (plan, improve, engage, design and transition, obtain and build, deliver and support). The value system is the bigger picture that includes the value chain plus governance, practices, and continual improvement.

Fourth: the practices themselves. There are 34 of them, and Foundation only expects you to know a handful in depth, but you still need to recognize all of them by name and roughly what they do. Incident management vs problem management vs service request management get confused a lot, since they all sound related but the exam is picky about the distinction.

I ended up doing a mix of reading through the official material and going through the PeopleCert ITIL 4 Foundation exam questions on CertBoosters, mainly to get a feel for how the "fill in the missing word" and "which of the following" style questions are phrased. That style takes some getting used to since ITIL loves precise terminology, and questions will sometimes hinge on one specific word.

If you're prepping right now, I'd say don't just memorize definitions. Spend extra time on telling similar-sounding concepts apart, that's where the real exam questions live.