Crucial Exams

GCP Professional Cloud Architect Practice Question

Your e-commerce company runs its order-processing microservices on multi-regional GKE clusters. Leadership wants proof that the platform can keep the percentage of successful checkouts above the agreed SLO of 99.9 % even if a critical dependency such as the payment service becomes unreachable for several minutes. Which approach best follows chaos engineering principles to achieve this goal?

  • Release a new version of the checkout service to 5 % of users as a canary and observe metrics for 24 hours before full rollout.

  • Perform monthly regional failover exercises by shifting all traffic to the standby region and validating data replication.

  • Run periodic stress tests that drive CPU on the staging cluster to saturation, then scale node pools before peak seasons.

  • Define "checkout success rate" as the steady-state metric, use a chaos tool to intermittently isolate the payment service in the production clusters, monitor the SLO during the experiment, and remediate any discovered weaknesses.

GCP Professional Cloud Architect
Ensuring solution and operations excellence
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