Professional-Cloud-Architect Exam Dumps | During a high traffic portion of the day, one of your relational databases crashes, but the replica is

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Google.Professional-Cloud-Architect.v2018-10-31.q45
Question 10

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Question 10/45

During a high traffic portion of the day, one of your relational databases crashes, but the replica is never promoted to a master. You want to avoid this in the future.
What should you do?

A. Use a different database

B. Choose larger instances for your database

C. Create snapshots of your database more regularly

D. Implement routinely scheduled failovers of your databases

Correct Answer: C

Explanation/Reference:
Explanation:
Take regular snapshots of your database system.
If your database system lives on a Compute Engine persistent disk, you can take snapshots of your system each time you upgrade. If your database system goes down or you need to roll back to a previous version, you can simply create a new persistent disk from your desired snapshot and make that disk the boot disk for a new Compute Engine instance. Note that, to avoid data corruption, this approach requires you to freeze the database system's disk while taking a snapshot.
Reference: https://cloud.google.com/solutions/disaster-recovery-cookbook

Recent Comments (The most recent comments are at the top.)

BSING - Oct 07, 2021

D is the correct answer. C will not help in this use case.
D. Implement routinely scheduled failovers of your databases

rubje - Apr 30, 2019

In an other example exam the answer was B, choose a larger instance, without comments. I was thinking maybe a reason the slave is not getting master is because the slave instance is not big enough?

But personally i also would think that testing the failovers would be a good answer.

MacDaddy - Nov 02, 2018

Missing the point here. We want the replica being promoted to a master, in case of a crash of the actual master. How does having a snapshot help that issue? The only way to address the issue is, to make routine failovers and see if they succeed.

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