Yang Model Capabilities | 400-201 Exam | Cisco CCIE Service Provider Written Exam

Three Yang Model Capabilities


Which are the three Yang model capabilities? (Choose three.)



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A. B. C. D. E. F.


Yang is a data modeling language used to define data structures for network management protocols. Yang models define the structure, syntax, and semantics of data exchanged between network devices and management applications. The three Yang model capabilities are:

A. Data structure through modules and submodules: Yang provides a modular way to define data structures that allow for reuse and extensibility. Yang modules can define groups of related data structures, and submodules can extend or refine the data structures defined in modules.

B. Hierarchical configuration data models: Yang models define data structures in a hierarchical manner, where data elements are organized into groups, containers, lists, and leaf nodes. This hierarchical structure allows for easy navigation and manipulation of the data.

C. Protocol and naming independence: Yang models are protocol and naming independent, meaning they can be used with any network management protocol and do not depend on any specific naming convention.

D. Syntactic level: This option is not correct as it is not one of the three capabilities of Yang models.

E. Formal constraints for configuration validation: Yang models can include constraints and validation rules that ensure the configuration data adheres to the desired structure and syntax. This helps to prevent errors and inconsistencies in the network configuration.

F. The same structure model as SMI version 2: This option is not correct as Yang models use a different structure and syntax compared to SMI version 2, which is used in SNMPv2.

In summary, the three capabilities of Yang models are data structure through modules and submodules, hierarchical configuration data models, and protocol and naming independence. Yang models also provide formal constraints for configuration validation to ensure the configuration data adheres to the desired structure and syntax.