200-901 Cisco Platforms and Development Practice Question
A network engineer wants to use model-driven programmability on IOS XE devices. Which two YANG model types are commonly used? (Choose two.)
⚠ Common exam trap
Cisco often tests the distinction between YANG model types (OpenConfig, IETF, Cisco native) and non-YANG concepts like MIBs or CLI, so candidates mistakenly select MIB files or CLI commands because they are familiar management tools, but they are not YANG models.
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 YANG models
OpenConfig YANG models (Option D) are vendor-neutral, community-driven models that provide a consistent way to manage network devices across multiple vendors, including Cisco IOS XE. Cisco native YANG models (Option E) are Cisco-specific models that expose the full set of device features and are directly supported on IOS XE. Both are commonly used for model-driven programmability with NETCONF/RESTCONF.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
MIB files
Why it's wrong here
MIBs are for SNMP, not YANG.
- ✗
IETF YANG models
Why it's wrong here
IETF models exist but are less commonly used on IOS XE compared to OpenConfig.
- ✗
CLI commands
Why it's wrong here
CLI is not model-driven programming.
- ✓
OpenConfig YANG models
Why this is correct
Vendor-neutral models like oc-interfaces.
- ✓
Cisco native YANG models
Why this is correct
Cisco-specific models like Cisco-IOS-XE-native.
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JA
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.