300-420 Question 74
Single answerAn enterprise network design includes the use of Cisco DNA Center to centralize network management and automation across multiple devices. To ensure consistent policy enforcement and abstraction of hardware-specific configurations, which platform abstraction technique should be prioritized?
- A
Model-driven programmability using YANG data models
- B
Device-specific command-line interface (CLI) scripting
- C
Virtualization of network devices using hypervisors
- D
Static routing configuration across all network devices
Show answer and explanation
Correct answer: A
Explanation
Platform abstraction techniques are critical for centralizing network management and simplifying operations across heterogeneous environments. In this scenario, YANG data models enable Cisco DNA Center to abstract hardware-specific configurations, ensuring consistent policy enforcement and automation across devices.
- A. Correct.
Model-driven programmability using YANG data models enables platform abstraction by standardizing how network devices are managed using structured data models. This approach allows Cisco DNA Center to interface with diverse devices consistently.
- B. Incorrect.
Device-specific command-line interface (CLI) scripting is not an abstraction technique. It does not address the need for consistency across multiple devices and can lead to manual errors or device-specific dependencies.
- C. Incorrect.
Virtualization of network devices using hypervisors focuses on creating virtual instances of network devices but does not inherently provide abstraction for managing policies or configurations across devices.
- D. Incorrect.
Static routing configuration is unrelated to platform abstraction. It is a networking technique for route management and doesn't provide abstraction for policy enforcement or automation.