PROFESSIONAL-DATA-ENGINEER · Question #363
PROFESSIONAL-DATA-ENGINEER Question #363: Real Exam Question with Answer & Explanation
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Question
You work for a large ecommerce company. You store your customer's order data in Bigtable. You have a garbage collection policy set to delete the data after 30 days and the number of versions is set to 1. When the data analysts run a query to report total customer spending, the analysts sometimes see customer data that is older than 30 days. You need to ensure that the analysts do not see customer data older than 30 days while minimizing cost and overhead. What should you do?
Options
- ASet the expiring values of the column families to 29 days and keep the number of versions to 1.
- BUse a timestamp range filter in the query to fetch the customer's data for a specific range.
- CSchedule a job daily to scan the data in the table and delete data older than 30 days.
- DSet the expiring values of the column families to 30 days and set the number of versions to 2.
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