What are two benefits of YANG? (Choose two.)
What are two benefits of YANG? (Choose two.)
YANG provides a structured and standardized way to define the configuration and operational semantics of network devices, ensuring clear and consistent data model definitions. This helps in ensuring that network devices are configured correctly and consistently. Additionally, YANG allows for the definition of constraints and validation rules on configuration data, ensuring that it adheres to specific requirements related to data type, range, length, and dependencies between configuration elements. By enforcing these constraints, YANG helps prevent misconfigurations and improves the overall reliability and stability of the network.
D. It enforces configuration semantics: YANG provides a structured and standardized way to define the configuration and operational semantics of network devices. It allows for clear and consistent definitions of data models, specifying how configuration elements relate to each other and what their intended behavior is. This helps ensure that network devices are configured correctly and consistently. E. It enforces configuration constraints: YANG allows for the definition of constraints and validation rules on the configuration data. These constraints help ensure that the configuration adheres to specific requirements, such as data type, range, length, and dependencies between configuration elements. By enforcing configuration constraints, YANG helps prevent misconfigurations and improves the overall reliability and stability of the network.
Provided answer is correct
D& E: ibogovic's texts are spot on
I would even vote ibogovic for president if this question is in the exam.
This statement is incorrect. YANG itself does not enforce the use of a specific encoding format for NETCONF. YANG is a data modeling language used to define the structure, hierarchy, and semantics of data. NETCONF, on the other hand, is a network management protocol that typically uses XML as its encoding format to exchange data between devices and management systems. While YANG models are often associated with NETCONF, YANG itself does not mandate the use of a specific encoding format. Therefore, option A is not a direct benefit of YANG.
DE is right.
YANG models can describe constraints to be enforced on the data, restricting the appearance or value of nodes based on the presence or value of other nodes in the hierarchy. These constraints are enforceable by either the client or the server, and valid content MUST abide by them. https://www.rfc-editor.org/rfc/rfc6020.html
A, E seems correct.
Multiple answers are corrects ... difficult to choose a best one..
A E IS CORRECT
im going with D & E
Two benefits of YANG are: C. It enables multiple leaf statements to exist within a leaf list. - YANG allows the definition of leaf-lists, which are used to represent lists of leaf nodes with the same name and type, enabling efficient modeling of repeating data elements. D. It enforces configuration semantics. - YANG provides a structured and standardized way to define data models for network devices and services, which helps in enforcing configuration semantics. By defining the syntax, structure, and semantics of configuration data, YANG facilitates interoperability and consistency across different devices and vendors.
yang is about semantics https://www.rfc-editor.org/rfc/rfc6020.html