Last Updated: Aug 22, 2026
No. of Questions: 105 Questions & Answers with Testing Engine
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The next section covers the best revision books for the Juniper JN0-221 certification exam prep;
To help jumpstart your certification exam training, Juniper provides a series of Day One books through its Networks Technical Publications platform. So, you may want to visit this platform to find the best revision book for your upcoming certification exam. Some of the most popular options here including Routing in Fat Trees (RIFT), Contrail DPDK vRouter, Beginner’s Guide to Learning Junos, Deploying Junos Route Servers, and Data Center Fundamentals.
To apply for the JN0-221, You have to follow these steps
Reference: https://www.juniper.net/us/en/training/certification/certification-tracks/devops/?tab=jnciadevops
Introduction to Junos Platform Automation and DevOps (IJAUTI) is a fundamental course that’s related to the aforementioned JN0-221 exam. It is suitable for all individuals willing to strengthen their skills and ability to configure or monitor devices featuring the Junos OS. As part of the basic training prerequisites, candidates enrolling in this program must first satisfy the following requirements:
When it comes to the course content, this 3-day program will help candidates establish a strong mastery of automation concepts and gain the skills needed to work with DevOps automation tools, technologies, and protocols. Through this training, learners will get vital hands-on experience with the languages and tools commonly associated with automating the Junos OS platform within a DevOps environment.
Also, this course will focus on vital Python concepts, PyEZ, REST API, and Ansible, as well as their roles when automating Junos. Like many Juniper study options, the content of this training is well distributed to give candidates a clear overview of what they will be covering every day. Day one starts with the introduction including an outline of the Junos OS, DevOps, and the Junos automation stack. Here, candidates should understand the benefits of DevOps, traffic processing, basic configuration tasks, and interface types, among other topics.
Then, students will learn the details of XPath and XML, XML API and NETCONF, and JSON along with YAML. This stage also introduces candidates to Python and Ansible. It should be stated that the second module of your Juniper JN0-221 exam training has intense requirements, combining online sessions in the form of a series of lectures with vital hands-on labs.
Lastly, the instructors will focus their attention on two major topics. They will introduce the Junos PyEZ and then will conclude with the Junos REST API. Again, you will get some practical skills in these areas by completing the tasks in lab environments. You may want to visit the Juniper official training page to find out more details about this course before registering for your JN0-221 exam.
The JNCIA-DevOps certification is meant to validate networking professionals’ strong entry-level knowledge of automation and the relevant best practices. This path will confirm that one also understands DevOps concepts as they relate to Juniper solutions and devices. Generally, the JNCIA-DevOps certificate is a vital part of Juniper’s Automation and DevOps path that helps specialists to demonstrate their expertise in working with scripting languages and tools to automate device and network function. This is also the same accreditation that candidates should obtain to qualify for the next-level Juniper JNCIS-DevOps certification along the same track.
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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Ansible Automation | 15% | - Playbook creation and execution - Juniper Junos Ansible modules - Ansible fundamentals and inventory files |
| Topic 2: Python and PyEZ Automation | 25% | - Junos PyEZ library installation and usage - Python basics and syntax - Modifying and applying configurations - Retrieving device status and configuration - Error and exception handling |
| Topic 3: Data Serialization and YANG | 15% | - YANG data modeling overview - JSON and YAML formats |
| Topic 4: XML, NETCONF, and REST API | 25% | - NETCONF protocol and operations - XPath fundamentals - XML syntax and concepts - Junos REST API usage |
| Topic 5: Junos Automation Stack and DevOps Concepts | 20% | - Version control basics - Junos automation architecture and components - DevOps culture, practices, and tools |
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