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DEA-C02 · Question #117
DEA-C02 Question #117: Real Exam Question with Answer & Explanation
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Data Transformation
Question
A Data Engineer is investigating a data quality issue that led to a system failure. Because there is no data from the time of the incident, the Engineer needs replicate the issue, without causing any disruptions to the current operations. How can a safe environment for testing be established without incurring additional costs?
Options
- AUse Time Travel to restore the data back to the way it was just before the incident occurred.
- BCreate an empty table using a CREATE TABLE LIKE command and insert the historic data into
- CCreate a view using the historic Time Travel data and use this view to test the data.
- DCreate a clone of the data using the historic Time Travel data and use the clone to test the data.
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Topics
#Time Travel#Zero-copy cloning#Data quality testing#Cost optimization