200-901 Cisco Platforms and Development Practice Question
Which YANG model is an OpenConfig model used for interface configuration?
⚠ Common exam trap
Cisco often tests the distinction between vendor-neutral OpenConfig models, IETF standard models, and Cisco proprietary native models, expecting candidates to recognize that 'openconfig-interfaces' is the correct OpenConfig model name, not a generic or IETF-prefixed alternative.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
openconfig-interfaces
OpenConfig is a vendor-neutral, community-driven data model standard for network configuration and state. The 'openconfig-interfaces' YANG model is the OpenConfig model specifically designed for interface configuration, providing a consistent, model-driven approach across different network operating systems. Option D is correct because it directly names the OpenConfig model for interfaces.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
oc-yang-interfaces
Why it's wrong here
oc-yang-interfaces is not a real OpenConfig model name; OpenConfig publishes interface models under the openconfig-interfaces namespace, so this identifier does not exist. It is tempting because the oc- prefix mimics OpenConfig naming, but the actual model name is what the question requires.
- ✗
ietf-interfaces
Why it's wrong here
ietf-interfaces is an IETF-standard YANG model, not an OpenConfig model, so it fails the OpenConfig requirement. It is tempting because it also models interface configuration and is vendor-neutral, which would be correct if the question asked for an IETF model instead.
- ✗
Cisco-IOS-XE-interfaces
Why it's wrong here
Cisco-IOS-XE-interfaces is a vendor-native model published by Cisco, not an OpenConfig model, so it fails the OpenConfig requirement. It is tempting because it configures interfaces on Cisco IOS XE devices, which would be correct if the question asked for a vendor-specific interface model.
- ✓
openconfig-interfaces
Why this is correct
The `openconfig-interfaces` module directly satisfies the stem's requirement for an OpenConfig interface configuration model. Unlike IETF or vendor-native YANG modules, OpenConfig models use a vendor-neutral schema, so this module configures interfaces consistently across multi-vendor devices via NETCONF or RESTCONF.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-901 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 200-901 exam.