1Z0-1195-25 Cheatsheet — Ingestion, Lakes/Warehouses, Governance & Analytics

Use this for last‑mile review. Pair it with the Syllabus.

1) Data platform in one picture (sources → ingestion → curated → analytics)

    flowchart LR
	  SRC["Sources"] --> ING["Ingest (batch/stream/CDC)"]
	  ING --> RAW["Raw storage"]
	  RAW --> PROC["Process/ETL"]
	  PROC --> CUR["Curated/serving"]
	  CUR --> BI["SQL/BI/Apps"]

2) Ingestion pickers (high-yield)

3) ETL/ELT and quality rules

• Validate early (schema, nulls, ranges) and quarantine bad data.
• Make pipelines idempotent (safe re-runs).
• Track lineage: what job produced what dataset and when (concept-level).

4) Governance checklist

• Ownership + access control (least privilege).
• Retention/deletion policies.
• Catalog/metadata for discoverability.
• Cost guardrails (budgets, tags, quotas).