What is the Kubernetes object YAML configuration management command that provides a declarative approach?

What is the Kubernetes object YAML configuration management command that provides a declarative approach?

• A. kubectl apply -f <config_file.yaml>
• B. kubectl create -f <config_file.yaml>
• C. kubectl edit -f <config_file.yaml>
• D. kubectl set -f <config_file.yaml>

Answer: (A)

Declarative configuration management means you describe the desired state of your Kubernetes objects in a YAML manifest and let the system bring the cluster to that state. Using a single command to apply that manifest updates the cluster to match what’s described, creating resources when they don’t exist and updating existing ones as needed. This approach supports maintaining a stored, versioned representation of your configuration and making changes by reapplying the manifest. The command that performs this is applying the manifest file with -f the config. Other options are more imperative: creating adds resources right away without aligning to a stored manifest, editing changes live objects directly, and the set command updates specific fields rather than reconciling the whole manifest.

Declarative configuration management means you describe the desired state of your Kubernetes objects in a YAML manifest and let the system bring the cluster to that state. Using a single command to apply that manifest updates the cluster to match what’s described, creating resources when they don’t exist and updating existing ones as needed. This approach supports maintaining a stored, versioned representation of your configuration and making changes by reapplying the manifest.

The command that performs this is applying the manifest file with -f the config. Other options are more imperative: creating adds resources right away without aligning to a stored manifest, editing changes live objects directly, and the set command updates specific fields rather than reconciling the whole manifest.