Which statement about labels is accurate?

Which statement about labels is accurate?

• A. Labels are key-value pairs attached to resources and can be used to select them.
• B. Labels are only used for namespaces
• C. Labels change the container image
• D. Labels are deprecated

Answer: (A)

Labels are key-value pairs attached to Kubernetes objects that let you identify, group, and select those objects. They enable label selectors, so controllers and commands can target a specific set of resources—for example, a service routing to pods labeled app=frontend. They don’t change the container image—that is defined in the pod/deployment spec—so labels aren’t about modifying what runs. They’re not deprecated and remain a fundamental mechanism for organizing and wiring resources, with annotations available for additional metadata that isn’t used for selection. While namespaces can have labels, the main utility is attaching labels to resources to enable efficient selection and management across the cluster.

Labels are key-value pairs attached to Kubernetes objects that let you identify, group, and select those objects. They enable label selectors, so controllers and commands can target a specific set of resources—for example, a service routing to pods labeled app=frontend. They don’t change the container image—that is defined in the pod/deployment spec—so labels aren’t about modifying what runs. They’re not deprecated and remain a fundamental mechanism for organizing and wiring resources, with annotations available for additional metadata that isn’t used for selection. While namespaces can have labels, the main utility is attaching labels to resources to enable efficient selection and management across the cluster.