# Put it all together: build a beginner streaming system on an event platform that is event-driven, ha

Canonical URL: <https://datadriven.io/problems/put-it-all-together-build-a-beginner-streaming-system-on-an-f3caadea>

Domain: Pipeline Design · Difficulty: medium

## Problem

Put it all together: build a beginner streaming system on an event platform that is event-driven, handles late-arriving data with watermarks, routes poison events to a DLQ, and serves a low-latency consumer.

## Related

- [All practice problems](https://datadriven.io/problems)
- [Mock interview mode](https://datadriven.io/interview/put-it-all-together-build-a-beginner-streaming-system-on-an-f3caadea)
- [System Design Interview Questions](https://datadriven.io/data-engineering-system-design)
- [Data Engineering Interview Prep Guide](https://datadriven.io/data-engineer-interview-prep)
- [Daily Challenge](https://datadriven.io/daily)

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