350-401 Automation Practice Question
Which THREE attributes are typically included in a YANG module for interface configuration? (Choose three.)
⚠ Common exam trap
Cisco often tests the distinction between configurable YANG leaves (like 'description', 'mtu', 'ip address') and operational state leaves (like 'mac address') or platform-specific extensions (like 'switchport mode') to see if candidates understand the standard IETF interface model versus proprietary additions.
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
✓
description
The 'description' leaf is a standard attribute in YANG models for interface configuration, providing a human-readable text string to document the interface's purpose. It is defined in the IETF interface model (RFC 8343) and is widely supported across Cisco IOS-XE and NX-OS YANG models.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
switchport mode
Why it's wrong here
Switchport mode is in a separate module.
- ✓
description
Why this is correct
Description is a common attribute.
- ✓
mtu
Why this is correct
MTU is a configurable attribute.
- ✓
ip address
Why this is correct
IP address is a standard interface attribute.
- ✗
mac address
Why it's wrong here
MAC address is typically a state data.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 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 350-401 exam.