Failed BLOCKCHAIN by 3 points — what should I change?

Quick data point: I spent 8 weeks studying, 1-3 hours a day, and passed with a 79%.

The section on blockchain took me the longest to feel confident about. Eventually I just drilled practice questions until I could answer them without hesitation.

What testing center did you end up booking? Some of them have much shorter wait times than others right now.

Passed BLOCKCHAIN 6 months ago. Happy to share what I remember.

On the "blockchain" stuff specifically — I found the practice tests here were actually harder than the real exam on those questions. Which was great because going in I felt more prepared than I needed to be.

The time pressure is real though. I came in with maybe 8 minutes to spare and that was after skipping the ones I wasn't sure about and coming back.

Don't try to cram the night before. Seriously. Last-minute stress makes you second-guess things you actually know.

Coming back to this thread — just passed my blockchain yesterday. Everything about the blockchain practice test section is accurate. For anyone still studying, the blockchain practice test pdf was the closest thing to the real exam I found.

I was in the same spot two weeks ago, honestly thought I had it. Started doing a blockchain practice test pdf every other day and my scores jumped from 68 to 79 in about ten days. The timed pressure really helped me find where I was actually shaky versus where I just thought I knew stuff.

Planning to sit the real exam on June 22nd. The consensus-mechanism questions were killing me but they're clicking now. You've got this, three points is nothing once you tighten up the right areas.

I was in almost the exact same spot six months ago, so this hits close. The thing that actually moved the needle for me wasn't studying more blockchain concepts, it was drilling the technical implementation questions until they felt automatic. Like, I didn't just read about consensus mechanisms, I made myself explain how they fail, what happens when nodes disagree, the specific tradeoffs. That's where the exam got me the first time too.

Honestly the "what is blockchain" stuff you already know is probably fine. Focus on the edge cases and the "why would you choose this over that" type questions. Those are the ones that separated the 70s from the 80s for me. It's annoying but once you shift your prep that way the gaps become pretty obvious pretty fast.