Your question is Sales Analytics System Design. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Design a solution that would help analyse the actual sales for an e-commerce company running ads through Meta platforms.
Asked in the Tech overview interview, a 45-minute stage after the HR screen. The candidate had no real coding background and answered by sketching a flow chart rather than writing code; they passed this round.
Explain the end-to-end data and ML architecture, including data sources, sales attribution, batch and online processing, evaluation, and operational risks. State which requirements and scale assumptions you would clarify before implementation.