Professional Cloud Database Engineer

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Q_01 domain/d1 · medium single discuss →

A financial services company must deploy a mission-critical transactional database on Google Cloud but also needs cross-cloud resilience to satisfy 'stressed exit' regulatory requirements that mandate the ability to fail over outside Google Cloud. Which architecture aligns with these requirements?

A A single multi-region Spanner instance entirely within Google Cloud
B A primary Spanner managed service in Google Cloud with Spanner Omni deployed in a secondary cloud or on-premises data center as a hot/cold failover site
C Two independent regional Spanner instances in different Google Cloud regions with application-level dual writes
D A self-managed PostgreSQL cluster replicated across two cloud providers

Q_02 domain/d1 · medium single discuss →

An architect is designing a globally distributed order system on Spanner and must choose a configuration that matches a strict fault-tolerance and availability requirement. Which statement correctly describes how Spanner lets you match availability requirements?

A Spanner only supports single-region deployments, so availability must be handled by the application
B Spanner offers single-region, dual-region, or multi-region configurations, delivering up to 99.999% availability
C Spanner availability depends entirely on manually configured failover replicas
D Spanner guarantees 99.99% availability only in multi-region configurations