Which command deletes all resources with label app=appname for an app named app?

Which command deletes all resources with label app=appname for an app named app?

• A. oc delete all -l app=appname
• B. oc delete pods -l app=appname
• C. oc delete all
• D. oc delete all -l app=other

Answer: (A)

Using a label selector with the delete command lets you remove all resources that carry a specific label in the current namespace. The command oc delete all -l app=appname deletes every resource type that has the label app with value appname, so pods, deployments, services, and other objects belonging to that app are removed in one go. If you delete only pods (oc delete pods -l app=appname), other resources for the app remain. Without the label selector (oc delete all) you would wipe out all resources in the namespace, not just this app’s. A different label value would miss this app’s resources. This approach efficiently cleans up all resources for that app in one command.

Using a label selector with the delete command lets you remove all resources that carry a specific label in the current namespace. The command oc delete all -l app=appname deletes every resource type that has the label app with value appname, so pods, deployments, services, and other objects belonging to that app are removed in one go. If you delete only pods (oc delete pods -l app=appname), other resources for the app remain. Without the label selector (oc delete all) you would wipe out all resources in the namespace, not just this app’s. A different label value would miss this app’s resources. This approach efficiently cleans up all resources for that app in one command.