Your question is Analytics SDK 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 an analytics SDK: interfaces, event scheduling, database management, and periodic uploads.
Asked in the Round 2: Technical (Tech Lead) stage. Low-level design after coroutine discussion. Explain the public interfaces, coroutine or background scheduling model, local database behavior, batching and upload policy, retry handling, and lifecycle management. Discuss how the SDK behaves when the application is offline, backgrounded, terminated, or updated.