2 min lesson
SQL & Python rapid drills
Use the lesson to respond to this: "To return the current state per entity from a CDC stream, why prefer a window function over a GROUP BY with a self-join at billions of rows?" Keep the answer plain.
Step 1 of 3
Cursor's first technical screen historically forbids AI beyond autocomplete. So the only honest prep is to run that constraint on yourself: blank file, agent muted, a timer and you narrating correctness, scale and cost while you type. Reasoning is graded, not just the final answer.
Treat the rubric as a gap finder, not a score to admire. Mark the weakest proof, turn it into one practice rep and keep the artifact you would show an interviewer.