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To verify the nodes in a Kubernetes cluster, you can run the following command:

kubectl get nodes

This will display a list of all the nodes that are currently part of the Kubernetes cluster.

To verify the status of its components, you can run the following command:

kubectl get components

This will display the status of the Kubernetes components, including the API server, etcd, scheduler, and controller manager.

You can also run the following command to check the status of the Kubernetes components:

kubectl get pods -n kube-system

This will display the status of all the pods running in the kube-system namespace, which includes the Kubernetes components.

If any of the components or pods are in a non-running state, you may need to troubleshoot the issue to ensure that the cluster is functioning properly. You can review the logs for the specific components and pods to determine what may be causing the issue.