Which of these statements about BigQuery caching is true?
- By default, a query's results are not cached.
- BigQuery caches query results for 48 hours.
- Query results are cached even if you specify a destination table.
- There is no charge for a query that retrieves its results from cache.
Answer(s): D
Explanation:
When query results are retrieved from a cached results table, you are not charged for the query.
BigQuery caches query results for 24 hours, not 48 hours.
Query results are not cached if you specify a destination table.
A query's results are always cached except under certain conditions, such as if you specify a destination table.
Reference:
https://cloud.google.com/bigquery/querying-data#query-caching
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