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To create a highly available Cloud SQL instance with PostgreSQL 13 in the europe-west1 region, which command correctly enables high availability?

hard📝 Best Practice Q8 of 15
GCP - Cloud SQL and Databases
To create a highly available Cloud SQL instance with PostgreSQL 13 in the europe-west1 region, which command correctly enables high availability?
Agcloud sql instances create ha-instance --database-version=POSTGRES_13 --region=europe-west1 --tier=db-n1-standard-2 --availability-type=ZONAL
Bgcloud sql instances create ha-instance --database-version=POSTGRES_13 --region=europe-west1 --tier=db-n1-standard-2 --availability-type=REGIONAL
Cgcloud sql instances create ha-instance --database-version=POSTGRES_13 --region=europe-west1 --tier=db-n1-standard-2
Dgcloud sql instances create ha-instance --zone=europe-west1-b --tier=db-n1-standard-2 --availability-type=REGIONAL
Step-by-Step Solution
Solution:
  1. Step 1: Specify database version

    Use POSTGRES_13 for PostgreSQL 13.
  2. Step 2: Set region

    Use --region=europe-west1 to specify the region.
  3. Step 3: Enable high availability

    Use --availability-type=REGIONAL to enable HA across zones.
  4. Step 4: Choose appropriate tier

    db-n1-standard-2 is a valid tier for production.
  5. Final Answer:

    gcloud sql instances create ha-instance --database-version=POSTGRES_13 --region=europe-west1 --tier=db-n1-standard-2 --availability-type=REGIONAL -> Option B
  6. Quick Check:

    High availability requires --availability-type=REGIONAL [OK]
Quick Trick: Use --availability-type=REGIONAL for high availability [OK]
Common Mistakes:
  • Using ZONAL availability disables HA
  • Specifying zone instead of region with REGIONAL availability
  • Omitting availability-type flag

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