To expand globally with 99.999% database availability and minimized read latency, which two actions should you take? (Choose two.)
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Correct answer: Create a multi-regional Cloud Spanner instance with "nam-asia-eur1" configuration., Create a cluster with at least 3 Spanner nodes..
Why this is the answer
To achieve 99.999% availability and minimize read latency globally, a multi-regional Cloud Spanner instance is essential. The "nam-asia-eur1" configuration spans North America, Asia, and Europe, providing global distribution and low-latency reads for users in these regions. A single-region configuration like "nam3" would not offer global coverage. Cloud Spanner requires a minimum of three nodes for a production instance to ensure high availability and fault tolerance, as it distributes data across these nodes. A single node is insufficient for high availability. Creating separate instances and replicating data via Dataflow is not the native, highly available, and consistent solution that Cloud Spanner offers out-of-the-box for global distribution.
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