Your question is Design a VirusTotal Like System. 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 VirusTotal-like system (file uploads, hashing, blob storage, sharding, async event-driven flow).
Asked in the System design (take-home) stage. Focus on how you would ingest files, deduplicate by hash, route work through an async pipeline, and store scan results reliably. Keep the design practical and explain the main tradeoffs.