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Exam Professional Cloud Database Engineer All Questions

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Exam Professional Cloud Database Engineer topic 1 question 61 discussion

Actual exam question from Google's Professional Cloud Database Engineer
Question #: 61
Topic #: 1
[All Professional Cloud Database Engineer Questions]

You are running a transactional application on Cloud SQL for PostgreSQL in Google Cloud. The database is running in a high availability configuration within one region. You have encountered issues with data and want to restore to the last known pristine version of the database. What should you do?

  • A. Create a clone database from a read replica database, and restore the clone in the same region.
  • B. Create a clone database from a read replica database, and restore the clone into a different zone.
  • C. Use the Cloud SQL point-in-time recovery (PITR) feature. Restore the copy from two hours ago to a new database instance.
  • D. Use the Cloud SQL database import feature. Import last week's dump file from Cloud Storage.
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Suggested Answer: C 🗳️
by pk349 at Dec. 25, 2022, 12:09 a.m.

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chelbsik
Highly Voted 10 months, 1 week ago
Selected Answer: C
I'll go for C
upvoted 6 times
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dynamic_dba
Highly Voted 7 months, 3 weeks ago
C. An HA configuration means a primary instance and a failover replica instance. There is no read replica unless you specifically create one. Hence, A and B are wrong. D is wrong since the question doesn’t mention logical backups, whereas an HA configuration would have automatic (physical) backups enabled. A PIT restore is the only answer here.
upvoted 5 times
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Ral17
Most Recent 4 months ago
Selected Answer: C
PITR is the best option here.
upvoted 1 times
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Nirca
7 months, 4 weeks ago
Selected Answer: C
Logical corruption like deleted records will be pushed to the read replica. Using import/export from last week is slow for large scale databases and will restore database from last week. So C - restoring using point in time option - is ok.
upvoted 1 times
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zanhsieh
8 months, 2 weeks ago
Selected Answer: D
D. PITR always restore to a **NEW** db instance, but the question does not ask to change the application configuration.
upvoted 1 times
zanhsieh
1 month ago
https://cloud.google.com/sql/docs/postgres/backup-recovery/restore#tips-pitr
upvoted 1 times
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pk349
10 months, 1 week ago
C: Use the Cloud SQL point-in-time recovery *** (PITR) feature. Restore the copy from two hours ago to a new database instance. Point-in-time recovery allows you to recover an instance to a specific point in time. For example, if an operator 'fat finger' error causes a loss of data you can recover a database to the state it was just before the error occurred.
upvoted 1 times
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