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Exam Professional Cloud Database Engineer topic 1 question 128 discussion

Actual exam question from Google's Professional Cloud Database Engineer
Question #: 128
Topic #: 1
[All Professional Cloud Database Engineer Questions]

You want to migrate an on-premises mission-critical PostgreSQL database to Cloud SQL. The database must be able to withstand a zonal failure with less than five minutes of downtime and still not lose any transactions. You want to follow Google-recommended practices for the migration. What should you do?

  • A. Take nightly snapshots of the primary database instance, and restore them in a secondary zone.
  • B. Build a change data capture (CDC) pipeline to read transactions from the primary instance, and replicate them to a secondary instance.
  • C. Create a read replica in another region, and promote the read replica if a failure occurs.
  • D. Enable high availability (HA) for the database to make it regional.
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Suggested Answer: D 🗳️
by AnilKr at March 24, 2023, 5:28 a.m.

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DBAgain
9 months, 2 weeks ago
Selected Answer: D
D is the clear winner.
upvoted 1 times
...
dynamic_dba
1 year, 1 month ago
D. Mission critical means make the instance HA. Nothing else makes sense apart from D.
upvoted 4 times
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AnilKr
1 year, 1 month ago
D, zonal failure > enable HA to recover
upvoted 1 times
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