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CKA study material · question 724 of 1000

Under externalTrafficPolicy: Cluster, which endpoint do load balancer health checks target?

  1. The Service's own port on each node
  2. The kubelet's /healthz on port 10250
  3. The API server's /readyz
  4. kube-proxy's /healthz on port 10256
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Answer: D. kube-proxy's /healthz on port 10256

With Cluster policy every healthy node is a valid target, so the health check asks kube-proxy's readiness endpoint on port 10256, which answers 200 or 503.

Source: Virtual IPs and Service Proxies (Kubernetes) — Traffic policies › External traffic policy

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