ExpertGCP PCA · Question 36 · Domain 1: Designing and Planning a Cloud Solution Architecture
You are designing a global financial application using Cloud Spanner. The application requires strong consistency and high availability across the US and Europe. You have chosen a multi-region Spanner configuration. Which TWO statements accurately describe how Cloud Spanner handles data replication and leader election in a multi-region setup? (Select TWO)
You are designing a global financial application using Cloud Spanner. The application requires strong consistency and high availability across the US and Europe. You have chosen a multi-region Spanner configuration. Which TWO statements accurately describe how Cloud Spanner handles data replication and leader election in a multi-region setup? (Select TWO)
Answer options:
Spanner uses the Paxos algorithm to achieve consensus across regions.
Read-only replicas can participate in leader election.
One region is designated as the default leader region, which processes all write requests.
If the leader region fails, the database becomes read-only until manual intervention occurs.
Data is replicated asynchronously to ensure low write latency.
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