JNCIA-DevOps Junos Automation Stack And DevOps Concepts Practice Question
An automation engineer is designing a Junos network automation workflow and needs to select the component of the Junos automation architecture responsible for parsing XML and JSONRPC client requests and interacting directly with the Junos kernel and daemons. Which component fulfills this role?
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
✓
mgd (Management Daemon)
MGD (Management Daemon) is the primary user interface handler in Junos OS. It processes CLI commands, Netconf XML requests, and JSON-RPC APIs, translating them into operations interacting with the Junos kernel and individual routing daemons via RRDS.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
mgd (Management Daemon)
Why this is correct
mgd processes CLI, NETCONF, and Junos XML/JSON-RPC API requests.
- ✗
jails
Why it's wrong here
Jails are FreeBSD security virtualization containers, not API processors.
- ✗
rpd (Routing Protocol Daemon)
Why it's wrong here
rpd manages routing protocols such as BGP and OSPF, not the management APIs.
- ✗
jsd (Junos Script Daemon)
Why it's wrong here
jsd executes local event scripts and SLAX/Python scripts on the device.
About these practice questions
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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.