A mock tests you the way the loop will: against a clock, with nobody to ask, while someone listens. Most candidates know more than they can show in 45 minutes. A mock shows you the gap: the query you can fix with time but not with a clock, the story that runs four minutes, the scenario you answer without asking a single question. Your plan puts a mock at the end of each block and on the last day. Run it yourself as below; a live mock interview inside D8Loop is on the way and will take this place in your plan.
Answered questions for this round — each with the short answer, the answer that gets you rejected, and the follow-up.
See all six rounds and the plans, or build something and have it reviewed: a daily orders pipeline or a marketplace model.