☁️ Free practice test question from: KCNA (KCNA)

ClusterIP: This is the most basic service type. It assigns a stable IP address within the cluster for a set of Pods, allowing other services and Pods within the same cluster to communicate with them.

NodePort: This type builds upon ClusterIP. It exposes the service on each Node's IP at a static port (the NodePort). A ClusterIP is automatically created along with the NodePort, making the service accessible both internally via the ClusterIP and externally via the NodePort on any Node.

LoadBalancer: This is the most advanced of the common service types. It builds upon both ClusterIP and NodePort. When you create a LoadBalancer service, Kubernetes provisions an external load balancer (cloud provider specific). This external load balancer then routes traffic to the Nodes on the NodePort, which in turn forwards it to the Pods associated with the ClusterIP service. Therefore, a LoadBalancer service implicitly creates a NodePort and a ClusterIP.