YANG
YANG (Yet Another Next Generation) is a data modeling language used to define the configuration, state data, and administrative actions for network devices and services. It provides a standardized way to describe network elements and their interactions, enabling automated configuration and management in software-defined networking (SDN) and network automation. YANG models are typically used with protocols like NETCONF or RESTCONF to manage network infrastructure programmatically.
Developers should learn YANG when working in network automation, SDN, or telecommunications, as it is essential for defining device configurations and enabling consistent management across multi-vendor environments. It is particularly valuable for roles involving network orchestration, DevOps for networking, or building network management systems, as it standardizes data models and reduces manual configuration errors.