GoogleCloudProfessionalDataEngineerPract.epub
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2024-06-23 22:13:54
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this data. What should you do?
A. Use BigQuery for storage. Provide format files for data load. Update the
format files as needed.
B. Use BigQuery for storage. Select "Automatically detect" in the Schema
section.
C. Use Cloud Storage for storage. Link data as temporary tables in BigQuery
and turn on the "Automatically detect" option in the Schema section of
BigQuery.
D. Use Cloud Storage for storage. Link data as permanent tables in BigQuery
and turn on the "Automatically detect" option in the Schema section of
BigQuery.
Answer: B
Correct answer is B as the requirement is to support occasionally (schema)
changing JSON files and aggregate ANSI SQL queries: you need to use
BigQuery, and it is quickest to use 'Automatically detect' for schema changes.
Refer GCP documentation - BigQuery Auto-Detection: -
https://cloud.google.com/bigquery/docs/schema-detect;
Schema auto-detection is available when you load data into BigQuery, and
when you query an external data source.
When auto-detection is enabled, BigQuery starts the inference process by
selecting a random file in the data source and scanning up to 100 rows of data
to use as a represen......
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