Which command would you use to view the fields and descriptions of a resource in OpenShift, aiding YAML authoring?

• A. oc explain <resource>
• B. oc describe <resource>
• C. oc get <resource>
• D. oc create <resource>

Answer: (A)

Viewing the API schema and documentation for a resource is essential when drafting YAML. The oc explain command queries the resource type’s schema from the OpenShift API and displays each field, its type, and a description of what it does. This includes nested fields and notes on which fields are required, which are optional, and any default values. That level of detail directly supports YAML authoring by letting you know exactly how to structure the manifest and what each field means. For example, you can drill into nested parts like pod.spec or deployment.spec to see all the available fields and their purposes. Other commands serve different purposes—describing a resource shows runtime details and events, getting a resource lists instances (and can output YAML for existing objects but doesn’t reveal the schema), and creating a resource actually writes a new object rather than documenting its fields.