Given a Cloud Spanner instance with multi-region config 'eur3' and 5 nodes, what is the expected behavior when a regional outage occurs in one region?

medium📝 service behavior Q4 of 15

GCP - Cloud SQL and Databases

AThe database becomes completely unavailable until the region recovers

BData is lost from the affected region permanently

CThe database remains available with minimal latency increase

DManual failover is required to restore availability

Step-by-Step Solution

Solution:

Step 1: Understand multi-region replication benefits
Multi-region config replicates data synchronously across regions to ensure availability.
Step 2: Analyze impact of regional outage
Other regions serve data, so database stays available with slight latency increase.
Final Answer:
The database remains available with minimal latency increase -> Option C
Quick Check:
Multi-region outage impact = Availability maintained [OK]

Quick Trick: Multi-region config keeps data available despite regional failures [OK]

Common Mistakes:

Assuming total downtime on regional failure
Believing data loss occurs automatically
Thinking manual failover is always needed

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Given a Cloud Spanner instance with multi-region config 'eur3' and 5 nodes, what is the expected behavior when a regional outage occurs in one region?

Step 1: Understand multi-region replication benefits

Step 2: Analyze impact of regional outage

Final Answer:

Quick Check:

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