Match each automation term to the best description.

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Automation in Cisco networking relies heavily on standardized data models, data formats, and interfaces to enable programmability and integration. YANG is a data modeling language used to define the structure and semantics of configuration and state data for network devices. It provides a formal schema that network automation tools use to understand and manipulate device configurations consistently. JSON, on the other hand, is a lightweight data interchange format that represents data structures in a readable text form, often used to encode YANG-modeled data for transport over APIs. APIs (Application Programming Interfaces) serve as the communication bridge between automation software and network devices or controllers. They expose programmable interfaces that allow software to send commands, retrieve data, and manage network resources. Tokens are security credentials used within API workflows to authenticate and authorize access, ensuring that only permitted users or systems can perform automation tasks. This token-based authentication is critical for maintaining secure and controlled automation environments. A common exam trap is confusing the roles of these terms. For example, mistaking JSON as a data model rather than a data format or misunderstanding that tokens are data models rather than security credentials. In practical Cisco automation, understanding that YANG defines the schema, JSON carries the data, APIs provide the interface, and tokens secure the process is essential for designing and troubleshooting programmable networks effectively.

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