300-420 Question 293
Single answerAn enterprise network engineer is tasked with implementing a network automation solution that requires a consistent data model across multi-vendor devices. The engineer must choose between IETF, OpenConfig, and Cisco-specific YANG models. Which option most accurately describes the characteristics of these models to help the engineer decide?
- A
IETF YANG models are vendor-neutral and widely adopted for standardizing network configurations.
- B
OpenConfig YANG models are Cisco-specific and focus on legacy device support.
- C
Cisco YANG models provide vendor-specific capabilities and are tailored only for Cisco devices.
- D
OpenConfig YANG models are community-driven and designed for multi-vendor interoperability.
Show answer and explanation
Correct answer: A
Explanation
IETF, OpenConfig, and Cisco YANG models each serve specific purposes. IETF models are vendor-neutral and focus on standardization, making them a good choice for multi-vendor environments. OpenConfig models are community-driven and emphasize interoperability across vendors. Cisco YANG models are proprietary and tailored to Cisco devices, offering advanced capabilities specific to the Cisco ecosystem. Understanding these differences helps in selecting the right model for network automation and management tasks.
- A. Correct.
Correct. IETF YANG models are developed by the Internet Engineering Task Force, are vendor-neutral, and are widely adopted to standardize network configurations.
- B. Incorrect.
Incorrect. OpenConfig YANG models are not Cisco-specific; they are community-driven and aim for interoperability across vendors.
- C. Incorrect.
Incorrect. Cisco YANG models are indeed vendor-specific, but this option does not accurately describe IETF and OpenConfig models.
- D. Incorrect.
Incorrect. While OpenConfig YANG models are community-driven and multi-vendor focused, this option does not describe IETF YANG models accurately, which is the key aspect of the question.