Architect cloud data ingestion patterns

Q: Architect cloud data ingestion patterns

This is a Data Manipulation (SQL/Python) interview question from EY for Data Scientist roles. View the full question and solution on PracHub.

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Question

Propose a cloud data ingestion and serving pattern for streaming and batch on your preferred cloud (AWS/Azure/GCP). Choose between CDC, event sourcing, or micro‑batch for upstream systems, justify partitioning/compaction, and show how you ensure idempotency, schema evolution (e.g., optional fields), and PII tokenization. Include cost controls (storage tiering, TTL, file size targets) and an incident you would simulate in chaos testing.

Architect cloud data ingestion patterns

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