What are two purposes of a data-modeling language such as YANG? (Choose two.)

YANG defines a strict hierarchical data scheme, organizing configuration and state data in a tree-like structure, which provides a clear and organized way to represent network device information.

YANG is explicitly designed to model not only configuration data but also operational state data, Remote Procedure Calls (RPCs), and asynchronous event notifications, providing a comprehensive definition of a device's data plane.

YANG uses a hierarchical (tree-like) data model, which is distinct from a relational-model data scheme used in relational databases.

While data modeled by YANG can be represented in semi-structured formats like JSON or XML, YANG itself defines a structured schema, not a semi-structured one.

YANG defines the content and structure of the data, which can then be serialized into formats like JSON or XML and used by API calls; however, it does not define the API calls or the serialization formats themselves.