How do labels and selectors connect between Services, Pods, and Deployments in OpenShift?

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Multiple Choice

How do labels and selectors connect between Services, Pods, and Deployments in OpenShift?

Labels are key-value pairs attached to objects to identify and group them. A Deployment defines how many Pods to run and uses a label selector to decide which Pods belong to that Deployment; the Pod template it creates must carry labels that match this selector so the Deployment can manage those Pods. A Service, on the other hand, doesn’t route by itself to any Pod; it uses its own label selector to choose which Pods should receive traffic. When the Pods have the same labels that the Deployment and the Service selectors use, the Deployment reliably manages the intended Pods and the Service can route requests to those Pods. In OpenShift, this pattern is how you connect workloads to each other: the labels form a contract that ties the Deployment’s managed Pods to the Service that exposes them. If the labels don’t align, the Service will have no endpoints, or the Deployment will not manage the correct Pods.

Labels are key-value pairs attached to objects to identify and group them. A Deployment defines how many Pods to run and uses a label selector to decide which Pods belong to that Deployment; the Pod template it creates must carry labels that match this selector so the Deployment can manage those Pods. A Service, on the other hand, doesn’t route by itself to any Pod; it uses its own label selector to choose which Pods should receive traffic. When the Pods have the same labels that the Deployment and the Service selectors use, the Deployment reliably manages the intended Pods and the Service can route requests to those Pods. In OpenShift, this pattern is how you connect workloads to each other: the labels form a contract that ties the Deployment’s managed Pods to the Service that exposes them. If the labels don’t align, the Service will have no endpoints, or the Deployment will not manage the correct Pods.

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