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KCNA · Question #197

Kubernetes ___ allows you to automatically manage the number of nodes in your cluster to meet demand.

The correct answer is B. Cluster Autoscaler. The Cluster Autoscaler automatically adjusts the number of nodes in your Kubernetes cluster based on resource demand.

Submitted by obi.ng· May 4, 2026Kubernetes Fundamentals

Question

Kubernetes ___ allows you to automatically manage the number of nodes in your cluster to meet demand.

Options

  • ANode Autoscaler
  • BCluster Autoscaler
  • CHorizontal Pod Autoscaler
  • DVertical Pod Autoscaler

How the community answered

(50 responses)
  • B
    94% (47)
  • C
    4% (2)
  • D
    2% (1)

Why each option

The Cluster Autoscaler automatically adjusts the number of nodes in your Kubernetes cluster based on resource demand.

ANode Autoscaler

"Node Autoscaler" is not the standard or specific term for scaling the number of nodes in Kubernetes; "Cluster Autoscaler" is the correct component.

BCluster AutoscalerCorrect

The Cluster Autoscaler monitors for pods that are pending due to insufficient resources and adds more nodes to the cluster to accommodate them, or it removes underutilized nodes to reduce costs. It works by integrating with cloud provider APIs to scale infrastructure up and down, ensuring the cluster has enough capacity to run all requested pods.

CHorizontal Pod Autoscaler

Horizontal Pod Autoscaler (HPA) automatically scales the number of pods in a deployment or replica set based on observed CPU utilization or other custom metrics, not nodes.

DVertical Pod Autoscaler

Vertical Pod Autoscaler (VPA) automatically adjusts the CPU and memory requests and limits for containers in pods, but it does not add or remove nodes.

Concept tested: Kubernetes Cluster Autoscaling

Source: https://kubernetes.io/docs/concepts/cluster-administration/cluster-autoscaler/

Topics

#Kubernetes Autoscaling#Cluster Autoscaler#Node Management#Infrastructure Scaling

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