Question 16 of 139
Single answerYou are building an application that allows users to customize their website and mobile experiences. The
application will capture user information and preferences. User profiles have a dynamic schema, and users can add
or delete information from their profile. You need to ensure that user changes automatically trigger updates to
your downstream BigQuery data warehouse. What should you do?
AStore your data in Bigtable, and use the user identifier as the key. Use one column family to store user profile
data, and use another column family to store user preferences.
BUse Cloud SQL, and create different tables for user profile data and user preferences from your
recommendations model. Use SQL to join the user profile data and preferences
✓CUse Firestore in Native mode, and store user profile data as a document. Update the user profile with
preferences specific to that user and use the user identifier to query.
DUse Firestore in Datastore mode, and store user profile data as a document. Update the user profile with
preferences specific to that user and use the user identifier to query
✓
Correct Answer: C
Use Firestore in Native mode, and store user profile data as a document. Update the user profile with preferences specific to that user and use the user identifier to query.
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Explanation
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