Crucial Exams

GCP Professional Cloud Architect Practice Question

An e-commerce platform runs microservices on a Google Kubernetes Engine (GKE) Standard cluster with a single node pool. Every Deployment is configured with a Horizontal Pod Autoscaler (HPA), and the Cluster Autoscaler is enabled on the node pool. During a flash-sale, traffic doubles and existing nodes can no longer schedule all requested replicas. You must brief the operations team on what will occur inside the cluster. Which statement correctly explains how the core GKE components react to this situation?

  • The scheduler immediately overcommits CPU and memory on existing nodes to launch the extra pod replicas without help from any autoscaler.

  • The node pool increases the number of pod replicas directly, and the HPA provisions additional virtual machines to accommodate them.

  • The Cluster Autoscaler grows the node pool when pods stay pending due to insufficient resources, and the scheduler schedules the extra replicas on the newly created nodes once they join the cluster.

  • The Horizontal Pod Autoscaler adds new nodes to the cluster when it detects unschedulable pods, after which the scheduler places extra pod replicas on them.

GCP Professional Cloud Architect
Managing and provisioning a solution infrastructure
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