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Juniper Automation and DevOps, Specialist (JNCIS-DevOps) : JN0-421 Exam

JN0-421 Exam Questions
  • Exam Code: JN0-421
  • Exam Name: Automation and DevOps, Specialist (JNCIS-DevOps)
  • Updated: Jul 31, 2026
  • Q & A: 66 Questions and Answers
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About Juniper JN0-421 Exam Braindumps

Candidates who pass the JN0-421 exam will earn the Juniper Networks Certified Specialist Automation and DevOps (JNCIS-DevOps) certification. Automation and DevOps, Specialist (JNCIS-DevOps) certification validates the skills and knowledge required to design, implement, and manage Juniper Networks automation and DevOps solutions. It is a valuable credential for IT professionals who work with Juniper Networks technology and want to advance their careers in automation and DevOps roles.

Juniper JN0-421 certification exam is a specialist-level exam focused on automation and DevOps. JN0-421 exam is designed to test the skills and knowledge of professionals who work with Juniper Networks products and solutions in a DevOps environment. The JN0-421 exam is intended for individuals who want to demonstrate their expertise in automating Juniper Networks products and solutions, including Junos OS and Contrail Networking.

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The JN0-421 exam is a vendor-specific certification exam that is designed to test an individual’s knowledge of automation and DevOps practices, as well as their ability to implement these practices using Juniper Networks technologies. JN0-421 exam covers a wide range of topics, including automation tools and techniques, continuous integration and deployment (CI/CD) pipelines, DevOps culture and collaboration, and more.

Reference: https://www.juniper.net/us/en/training/certification/certification-tracks/devops?tab=jncis-devops

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Juniper JN0-421 (Automation and DevOps, Specialist (JNCIS-DevOps)) Exam is a certification exam that is designed to assess the knowledge and skills of candidates who are interested in the field of automation and DevOps. JN0-421 exam is aimed at professionals who are responsible for automating and managing the network infrastructure of their organizations. Candidates who pass JN0-421 exam will be designated as Juniper Networks Certified Internet Specialists (JNCIS-DevOps).

Juniper JN0-421 Exam Syllabus Topics:

SectionWeightObjectives
YANG Models and Data Formats15%- OpenConfig
- JSON, XML, YAML
- YANG model concepts
- Jinja2 templating
Platform Automation Overview15%- Telemetry concepts
- MGD-based automation
- JSD-based automation
- Junos automation architecture
NETCONF, RESTCONF, and APIs20%- REST API / RESTCONF
- NETCONF protocol
- gRPC and gNMI
- XML API
Python Automation20%- Configuration management
- JSNAPy
- Junos PyEZ library
- RPC execution
JET and Orchestration Tools15%- Ansible for Junos
- Juniper Extension Toolkit (JET)
- Terraform basics
- Ephemeral configuration
Junos Automation Scripts15%- Op scripts
- SNMP scripts
- Event scripts
- Commit scripts

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