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Which Kubernetes-native autoscaler on GKE adjusts the NUMBER of replicas of a Deployment based on CPU or custom metrics?
ACluster Autoscaler
BHorizontal Pod Autoscaler (HPA)
CNode Auto-Provisioning (NAP)
DVertical Pod Autoscaler (VPA)
Answer & Solution
Correct answer: B. Horizontal Pod Autoscaler (HPA)
HPA scales replicas (horizontally — more pods). VPA tunes per-pod CPU/memory requests (vertically). Cluster Autoscaler adjusts the node count. NAP creates new node pools when no existing pool fits. They're all distinct.
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