300-420 Question 294
Single answerAn enterprise network architect is evaluating YANG models for network automation in their multi-vendor environment. The architect needs a model that is vendor-neutral and standardized for device configuration across different platforms. Which YANG model would best suit this requirement?
- A
IETF YANG model
- B
OpenConfig YANG model
- C
Cisco native YANG model
- D
Vendor-specific proprietary YANG model
Show answer and explanation
Correct answer: A
Explanation
The IETF YANG model is created and maintained by the Internet Engineering Task Force (IETF), ensuring it is vendor-neutral and widely accepted as a standard for device configuration. This makes it the best choice for multi-vendor environments compared to OpenConfig, which is not an official standard, and Cisco native or proprietary models, which are vendor-specific.
- A. Correct.
The IETF YANG model is standardized and vendor-neutral, making it ideal for multi-vendor environments.
- B. Incorrect.
OpenConfig YANG models are also vendor-neutral but are primarily driven by operators, not an official standards body like the IETF. It might not be as universally adopted as IETF models.
- C. Incorrect.
Cisco native YANG models are specific to Cisco devices and are not vendor-neutral, making them unsuitable for multi-vendor environments.
- D. Incorrect.
Vendor-specific proprietary YANG models are tied to individual vendors and do not offer the standardization required for multi-vendor environments.