Free Google Cloud Architect Actual Exam Questions - Question 5 Discussion
application requires high-availability and regional fault tolerance. The front-end is
stateless and the backend is a PostgreSQL database. They want to minimize latency
for customers across two US regions. Which set of GCP services should you
recommend for a highly available, multi-region deployment?
C. Cloud Spanner’s multi-region capabilities fit the high availability and low latency needs better than Cloud SQL in this scenario, plus global HTTP(S) load balancing handles traffic efficiently across regions.
It’s A because having two Partner Interconnects in different metro zones still provides strong redundancy without the complexity and cost of multi-metro setups like D. That fits better for typical production-level design.
Maybe A, since splitting connections in different metro zones still gives some redundancy without full multi-metro complexity.
D imo. It’s the only option that covers multi-metro redundancy properly, which is key for production-level resilience. A only focuses on one metro, so it lacks geographic diversity, and B with VPNs just can’t match the bandwidth or reliability needed here. C’s Direct Peering isn’t designed for the same kind of hybrid setup. For serious uptime and disaster recovery, having dedicated interconnects spread across two metros is the way to go.
A/D? A has some redundancy but only in one metro, while D offers multi-metro redundancy which is better for disaster recovery and uptime. B and C don't really match production-grade hybrid connectivity needs here.
It’s D-best for high availability and meets production standards.