Which command allows you to view the YAML declaration specification of a Kubernetes object from the command line?

Which command allows you to view the YAML declaration specification of a Kubernetes object from the command line?

• A. kubectl explain [object]
• B. kubectl describe [object]
• C. kubectl get -o yaml
• D. kubectl apply -f

Answer: (A)

Viewing the YAML declaration specification for a Kubernetes object means inspecting the API schema that defines which fields you can include in a manifest and what each field means. The command that does this is kubectl explain. It queries the API’s built-in schema for the chosen resource type and returns the available fields along with descriptions, effectively showing the structure and semantics of the YAML you can declare. You can drill into deeper levels with --recursive, for example to explore what goes into the spec, template, or containers sections, so you understand exactly what you may configure. Other commands don’t provide the declaration schema. kubectl describe prints human-readable details about a live object’s status and events, not the allowed YAML fields. kubectl get -o yaml outputs the current YAML representation of an existing resource, which reflects the live state (and can differ from your original manifest), not the full declaration specification. kubectl apply -f reads and applies a YAML manifest to create or update resources, not to reveal the schema.

Viewing the YAML declaration specification for a Kubernetes object means inspecting the API schema that defines which fields you can include in a manifest and what each field means. The command that does this is kubectl explain. It queries the API’s built-in schema for the chosen resource type and returns the available fields along with descriptions, effectively showing the structure and semantics of the YAML you can declare. You can drill into deeper levels with --recursive, for example to explore what goes into the spec, template, or containers sections, so you understand exactly what you may configure.

Other commands don’t provide the declaration schema. kubectl describe prints human-readable details about a live object’s status and events, not the allowed YAML fields. kubectl get -o yaml outputs the current YAML representation of an existing resource, which reflects the live state (and can differ from your original manifest), not the full declaration specification. kubectl apply -f reads and applies a YAML manifest to create or update resources, not to reveal the schema.