Solution:Step 1: Check tier availabilitySome machine tiers like db-f1-micro are not available in all regions.Step 2: Validate region supportus-central1 supports Cloud SQL, so this is unlikely the cause.Step 3: Missing database-version flagWhile recommended, missing this flag usually triggers a diffe

[Solved] You execute:gcloud sql instances create test-instance --tier=db-f1-micro --region=us-central1and receive an error about invalid tier. What is the most probable reason? | GCP

GCP - Cloud SQL and Databases

You execute:

gcloud sql instances create test-instance --tier=db-f1-micro --region=us-central1

and receive an error about invalid tier. What is the most probable reason?

AThe instance name test-instance is already in use

BThe region us-central1 does not support Cloud SQL

CThe command is missing the --database-version flag

DThe tier db-f1-micro is not available in the specified region

Step-by-Step Solution

Solution:

Step 1: Check tier availability
Some machine tiers like db-f1-micro are not available in all regions.
Step 2: Validate region support
us-central1 supports Cloud SQL, so this is unlikely the cause.
Step 3: Missing database-version flag
While recommended, missing this flag usually triggers a different error.
Step 4: Instance name conflict
This would cause a different error about name duplication.
Final Answer:
The tier db-f1-micro is not available in the specified region -> Option D
Quick Check:
Check tier availability per region before creating instance [OK]

Quick Trick: Verify tier availability in the chosen region [OK]

Common Mistakes:

Assuming all tiers are available in every region
Ignoring missing database-version warnings
Confusing instance name errors with tier errors

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You execute:

Step 1: Check tier availability

Step 2: Validate region support

Step 3: Missing database-version flag

Step 4: Instance name conflict

Final Answer:

Quick Check:

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