350-401 Question 321
Select 3A network engineer is tasked with automating the configuration of multiple network devices in a way that ensures consistency and simplifies the management process. The engineer decides to use a data modeling language and considers YANG. Which of the following are high-level principles or benefits of using YANG in this scenario?
- A
YANG provides a standardized way to define the structure of network configuration and state data.
- B
YANG is primarily used for generating traffic flow statistics on network devices.
- C
YANG enables interoperability between different vendors' devices by defining a common modeling framework.
- D
YANG allows configuration data to be validated against a defined model before being applied to devices.
- E
YANG requires proprietary tools and protocols specific to each vendor, limiting its usability in multi-vendor environments.
Show answer and explanation
Correct answers: A, C, D
Explanation
YANG is a widely used data modeling language that provides a standardized framework for defining and automating network configurations and operational data. It promotes interoperability, ensures data validation, and simplifies network management, especially in environments with devices from multiple vendors. By using YANG, network engineers can streamline automation processes and maintain consistency across configurations.
- A. Correct.
Correct. YANG defines a standardized approach for modeling configuration and state data, making it easier to manage and automate network devices.
- B. Incorrect.
Incorrect. YANG is not designed for generating traffic flow statistics. It is a data modeling language used to define configuration and operational data.
- C. Correct.
Correct. One of the core benefits of YANG is that it promotes interoperability by providing a common framework that can be implemented across devices from different vendors.
- D. Correct.
Correct. YANG allows configuration data to be validated against its schema, ensuring that the configuration is correct before being applied to network devices.
- E. Incorrect.
Incorrect. YANG is a vendor-neutral data modeling language and is widely supported by open standards. It does not require proprietary tools or protocols, making it suitable for multi-vendor environments.