SIL online vs in-person exam — any difference in difficulty?

What helped me most with exam prep specifically: stop thinking about it as a topic to memorize and start thinking about the types of decisions it's asking you to make. Once I shifted to that frame, my SIL scores in that section jumped about 12 points within a week.

For anyone finding this thread later: the SIL is passable with consistent effort, even working full time. I studied 41 minutes a day for 10 weeks. The sil fundamentals & core concepts kept me honest about where my gaps were instead of just drilling things I already knew.

Coming back to this thread — just passed my SIL yesterday. Everything about the sil practice test section is accurate. For anyone still studying, the free sil safety lifecycle management was the closest thing to the real exam I found.

Coming back to this thread — just passed my SIL yesterday. Everything about the sil practice test section is accurate. For anyone still studying, the free sil safety lifecycle management was the closest thing to the real exam I found.

One thing that really helped me was drilling on the IEC 61508 lifecycle phases until the order was automatic — not just "knowing" them, but being able to mentally step through them under pressure without second-guessing yourself. The SIL exam loves to give you scenario questions where you have to identify which phase a described activity belongs to, and if you're hesitating on that, you're burning time you don't have. Flashcards, timed quizzes, whatever works — just get those phases locked in.

On your actual question: I went in-person and don't regret it. The proctored online setup requires you to clear your desk, do a room scan, and sometimes deal with connection checks right before you start — that's its own kind of stress on top of exam nerves. The testing center felt clinical but predictable. No surprises. That said, if your home setup is genuinely quiet and stable, some people swear by it. What killed one of my study partners was background noise triggering the proctor software mid-exam. Total nightmare.

If you're still in prep mode, a sil practice test under timed conditions is worth doing a few times regardless of which format you pick — mostly so you know how it feels to work against the clock on functional safety concepts that can seem deceptively similar to each other. SIL 2 vs SIL 3 risk reduction tradeoffs, for example. Easy to mix up when you're rushing.