Which command deletes all resources with label app=appname?

Which command deletes all resources with label app=appname?

• A. oc delete all -l app=appname
• B. oc delete all -l app=appname --ignore-not-found
• C. oc delete pods -l app=appname
• D. oc delete all

Answer: (A)

The idea is to delete resources by matching a label across all resource types in the namespace. Using a label selector with the all resource type targets every kind of resource (pods, deployments, services, etc.) that carries the specified label, and removes only those matching app=appname. This approach is the correct way to delete all resources with that label in one command. Deleting only pods would miss other resource types with the same label. Omitting the -l filter would remove every resource in the namespace, not just those labeled app=appname. The --ignore-not-found flag only suppresses errors for non-existent resources and doesn’t change the scope of what’s deleted, so it’s not needed for achieving the goal.

The idea is to delete resources by matching a label across all resource types in the namespace. Using a label selector with the all resource type targets every kind of resource (pods, deployments, services, etc.) that carries the specified label, and removes only those matching app=appname. This approach is the correct way to delete all resources with that label in one command.

Deleting only pods would miss other resource types with the same label. Omitting the -l filter would remove every resource in the namespace, not just those labeled app=appname. The --ignore-not-found flag only suppresses errors for non-existent resources and doesn’t change the scope of what’s deleted, so it’s not needed for achieving the goal.