What is the primary function of kubectl?

kubectl is thecommand-line interface for Kubernetes. According to the Kubernetes documentation:

kubectl communicates with theKubernetes API server.

It is used tocreate, update, delete, and inspectKubernetes resources such as Pods, Deployments, Services, ConfigMaps, and so on.

It is the primary tool administrators and developers use tomanage resources in a Kubernetes cluster.

This corresponds exactly to optionB – To interact with the Kubernetes API to manage cluster resources.

Why the others are incorrect:

A – Configure storage systems:You can manage storage-related Kubernetes objectsviakubectl, but that is only one aspect of managing resources; it is not the core definition.

C – Set up cloud environments:Cloud environments (accounts, projects, VPCs) are managed by cloud-provider-specific tools, not by kubectl.

D – Create virtual networks:Kubernetes networking is handled by CNI plugins and cluster configuration; kubectl does not directly create underlying virtual networks.