Exploring data transformation
Practise only this domain. 16 questions with explanations, 20 at a time.
Start this domainSample questions
- A film studio archives raw footage, rendered clips and nightly system snapshots, mostly as large binary files that are rarely queried by row. Which service should hold this archive?Easy
- A social app stores user profiles, each with nested collections of posts and comments, and different users have different fields. The developers do not want to define rigid table schemas. Which database type suits this workload?Medium
- A data engineering group already writes its nightly ETL as Python DAGs for an open-source scheduler. They want Google to run and patch that scheduler so they can keep the same DAG code. Which managed service should they use?Hard
- A bank holds customer data in several BigQuery datasets and Cloud Storage lakes owned by different teams. It wants one governance layer that catalogs these assets, tracks data quality and applies consistent security policies across them. Which service fits?Hard