KCNA Exam Dumps | Which item is a Kubernetes node component?

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LinuxFoundation.KCNA.v2026-06-06.q96
Question 27

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Question 27/96

Which item is a Kubernetes node component?

A. kube-scheduler

B. kubectl

C. kube-proxy

D. etcd

Correct Answer: C

A Kubernetes node component is a component that runs on worker nodes to support Pods and node-level networking/operations. Among the options, kube-proxy is a node component, so C is correct.
kube-proxy runs on each node and implements parts of the Kubernetes Service networking model. It watches the API server for Service and endpoint updates and then programs node networking rules (iptables/IPVS, or equivalent) so traffic sent to a Service IP/port is forwarded to one of the backend Pod endpoints. This is essential for stable virtual IPs and load distribution across Pods.
Why the other options are not node components:
kube-scheduler is a control plane component; it assigns Pods to nodes but does not run on every node as part of node functionality.
kubectl is a client CLI tool used by humans/automation; it is not a cluster component.
etcd is the control plane datastore; it stores cluster state and is not a per-node workload component.
Operationally, kube-proxy can be replaced by some modern CNI/eBPF dataplanes, but in classic Kubernetes architecture it remains the canonical node-level component for Service rule programming. Understanding which components are node vs control plane is key for troubleshooting: node issues involve kubelet/runtime/kube-proxy/CNI; control plane issues involve API server/scheduler/controller-manager/etcd.
So, the verified node component in this list is kube-proxy (C).

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