JN0-423 — Automation and DevOps, Specialist (JNCIS-DevOps) Practice Test

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Description

Once you're scripting Junos at the associate level, JN0-423 takes you to JNCIS-DevOps, Juniper's specialist certification for network automation. Familiarity with Python, SLAX or XSLT is expected. The practice test helps you check gRPC and gNMI telemetry, Ansible, commit and event scripts, and YANG before exam day.

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Stop guessing what will be on the exam. Our question banks are meticulously mapped to the official syllabus, ensuring comprehensive coverage of every domain and objective. Review the topics below to see exactly what you will be tested on.

JN0-423Automation and DevOps, Specialist (JNCIS-DevOps)
Mapped
Domains Covered
Platform Automation Overview
gRPC
Ansible
Junos Automation Scripts
YANG

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Q 50 / 5002:14
Which protocol operates at the transport layer?
A HTTP
B TCP
C ARP
D ICMP
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Correct
Option B is correct — TCP operates at the transport layer
Why?
TCP (Transmission Control Protocol) provides reliable, connection-oriented communication at Layer 4 of the OSI model.

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Every question includes a detailed explanation so you understand the reasoning, not just the right answer. Build lasting knowledge for exam day and your career.

197
practice questions

JN0-423 Questions

Study from 197 practice questions aligned to the latest JN0-423 objectives.

Associate (JNCIA)
Entry-level Junos & specialty foundations
Specialist (JNCIS)
Intermediate-level domain expertise
Professional (JNCIP)
Advanced configuration and troubleshooting

Pathways to Success

JN0-423 is part of the Juniper certification pathway. See how this exam connects to your long-term career goals.

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Get all new and old versions of the Automation and DevOps, Specialist (JNCIS-DevOps) practice test so you have multiple question sets to study from. When objectives change, your question pool updates automatically.

Why is TCP connection-oriented?
TCP uses a three-way handshake (SYN, SYN-ACK, ACK) to establish a reliable session before data transfer begins...

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ExamJungle JN0-423 Practice Tests give you real questions, answers, and detailed explanations — supplementing your studying with practice questions alongside other sources is the best way to ace your exam. Students who use ExamJungle Practice Tests consistently perform better on exam day and advance further in their careers. Certified professionals earn up to 30% higher salaries than their non-certified peers — investing in your skills today pays off for years to come.

Frequently asked questions

Everything you need to know about prepping for JN0-423.

What is the JN0-423 exam format?
Official format is typically 65 questions, 90 minutes, passing score Variable (approximately 60-70%)/Not published by Juniper. Available in 1 language.
How much does the JN0-423 exam cost?
The official exam fee is $300 USD. Pricing may vary by country, currency, or voucher.
What topics are on the JN0-423 exam?
The JN0-423 syllabus is organized into 5 domains. (Last updated: 2024)
  • Platform Automation Overview (20%)
  • gRPC (20%)
  • Ansible (20%)
  • Junos Automation Scripts (20%)
  • YANG (20%)
How should I prioritize the JN0-423 syllabus?
Start with the highest‑weight domains first: Platform Automation Overview, gRPC, Ansible. Then work down the list and use practice questions to validate each topic.
Who should take the JN0-423 exam?
This exam is commonly taken by Network engineers implementing automation solutions. Review recommended experience and the syllabus domains on this page.
Is the JN0-423 exam active in 2026?
Current status: ACTIVE. Last content update: 2024.
How long is the JN0-423 certification valid?
Certification validity is typically 3 years. Recertification options vary by vendor and program.
When was JN0-423 released and when does it retire?
Released: 2023.
How many JN0-423 practice questions are included on ExamJungle?
This JN0-423 practice test includes 197 practice questions in the simulator, with explanations and study tools.
Is this the real JN0-423 exam?
No, but the questions mirror the format, difficulty, and objectives so you are fully prepared.
How long do I get access?
Access depends on your plan, with ongoing updates to the JN0-423 pool.
Can I study on mobile?
Yes, the simulator is optimized for desktop and mobile so you can keep studying anywhere.
Does this include explanations?
Yes, detailed explanations are included for every question.

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