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PROFESSIONAL-DATA-ENGINEER · Question #49
You work for an economic consulting firm that helps companies identify economic trends as they happen. As part of your analysis, you use Google BigQuery to correlate customer data with the average pri
The correct answer is B. Store and update the data in a regional Google Cloud Storage bucket and create a federated data source in BigQuery. Explanation/Reference: The regional storage is cheaper than BigQuery storage.
Submitted by carlos_mx· Mar 30, 2026Designing data processing systems
Question
You work for an economic consulting firm that helps companies identify economic trends as they happen. As part of your analysis, you use Google BigQuery to correlate customer data with the average prices of the 100 most common goods sold, including bread, gasoline, milk, and others. The average prices of these goods are updated every 30 minutes. You want to make sure this data stays up to date so you can combine it with other data in BigQuery as cheaply as possible. What should you do?
Options
- ALoad the data every 30 minutes into a new partitioned table in BigQuery.
- BStore and update the data in a regional Google Cloud Storage bucket and create a federated data source in BigQuery
- CStore the data in Google Cloud Datastore. Use Google Cloud Dataflow to query BigQuery and combine the data programmatically with the data stored in Cloud
- DStore the data in a file in a regional Google Cloud Storage bucket. Use Cloud Dataflow to query BigQuery and combine the data programmatically with the data
How the community answered
(41 responses)- A2% (1)
- B78% (32)
- C7% (3)
- D12% (5)
Explanation
Explanation/Reference: The regional storage is cheaper than BigQuery storage.
Topics
#BigQuery federated queries#Cloud Storage#cost optimization#data freshness
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