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Google Cloud Certified Professional Cloud Database Engineer · Google Cloud
Select 2 answers.
This question asks for 2 answers, but our data marks only 1. Compare with the community discussion below for the full answer.
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A, E. The answers are split between significant and insignificant. For insignificant, the simplest form of recovery would be E. That eliminates D. For significant, let’s assume that means a lot of data of the the 50 TB total. A stale read and write back would probably been too onerous, so that eliminates B. That leaves A and C. The question doesn’t mention anything about logical backups (export) which suggests a restore from a backup would be appropriate of a large amount of data that needed to be recovered. https://cloud.google.com/spanner/docs/pitr https://cloud.google.com/spanner/docs/backup/restore-backup
AE are correct.
B: If the corruption is significant, perform a stale ***** read and specify a recovery timestamp. Write the results back. D: If the corruption is insignificant, use backup and ***** restore, and specify a recovery timestamp.