JNCIA-DevOps Junos Automation Stack And DevOps Concepts Practice Question
In a Junos automation environment, what role does a schema (such as YANG or Junos XSD) play when interacting with NETCONF?
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
✓
It defines the structural rules, data types, and valid hierarchy for configuration and operational data models.
YANG or XSD schemas define the data model structure, types, and constraints for configuration and operational data.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It encrypts the communication channel between the client and the Junos device.
Why it's wrong here
Encryption is handled by SSH/TLS transport layers.
- ✓
It defines the structural rules, data types, and valid hierarchy for configuration and operational data models.
Why this is correct
Correct. Schemas define the valid structure of XML/JSON data.
- ✗
It acts as a firewall filter blocking unauthorized IP addresses on the management interface.
Why it's wrong here
Firewall filters handle packet filtering, not data modeling.
- ✗
It compiles Python scripts into executable machine code for the Routing Engine CPU.
Why it's wrong here
Schemas do not compile Python code.
About these practice questions
One of 307 original JNCIA-DevOps practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Juniper Networks exam blueprint
This JNCIA-DevOps practice question is part of Courseiva's free Juniper Networks 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 JNCIA-DevOps exam.