What's the Hardest Concept in Analytics-DA-201 That Nobody Talks About?
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Spent weeks preparing for DA-201 and thought I was ready. Then nested LOD expressions showed up and humbled me completely.
Nobody warned me about how tricky the logic can get in calculated fields. Every study guide I found either skipped it or explained it so poorly that it made things worse. Stumbled across a breakdown on ITExamsTopics that finally made it click, a real exam scenario, step by step. That's what actually moved me forward.
Passed on my second attempt. In my first attempt, I didn't respect this topic enough.
Which concept in DA-201 caught you off guard?
For me, it was LOD logic. Others I've talked to say it's filter order of operations or data blending vs joins. These topics don't get enough attention, but they absolutely show up on the exam.
Drop it below, let's build something useful for the next person preparing for this.