Medium1 markMultiple Choice

GCP PCA · Question 40 · Domain 2: Managing and Provisioning a Solution Infrastructure

You are provisioning a Cloud SQL for MySQL instance for a production application. The application requires high availability (HA) to survive a zone failure, and needs to support heavy read traffic from reporting dashboards without impacting the primary transactional workload. Which TWO configurations should you enable? (Select TWO)

Answer options:

A.

Enable Regional High Availability (HA) to create a standby instance in a different zone.

B.

Configure a multi-region Cloud Spanner instance.

C.

Create a Read Replica and point the reporting dashboards to it.

D.

Enable automated backups and point the reporting dashboards to the backup bucket.

E.

Increase the vCPU and RAM of the primary instance to handle both workloads.

How to approach this question

Address the two requirements separately: HA for zone failures, and offloading read traffic.

Full Answer

Enable Regional High Availability (HA) to create a standby instance in a different zone. Create a Read Replica and point the reporting dashboards to it.
To survive a zone failure in Cloud SQL, you must enable Regional High Availability (Option A), which creates a synchronous standby instance in another zone. To prevent heavy reporting queries from impacting the primary transactional database, you should provision a Read Replica (Option C) and route the dashboard traffic to it.

Common mistakes

Assuming HA instances can be used for read scaling. The HA standby instance in Cloud SQL is passive and cannot serve read queries.

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