**Typical stack**: GCS (raw/curated storage) + Dataflow (streaming/batch) + BigQuery (analytics) + Cloud Composer (orchestration) + Data Catalog (governance). **Ingest**: Pub/Sub, Transfer Service, Cloud Storage. **Processing**: Dataflow (Beam), Dataproc (Spark). **Analytics**: BigQuery, Looker. **Governance**: Data Catalog, DLP. **Why GCP**: Strong integration (BigQuery + GCS native); serverless options; good ML (Vertex AI). **Scalability**: All scale elastically....
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