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

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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To prepare for the JN0-421 exam, candidates should have a solid understanding of Juniper Networks devices and their configuration. They should also have experience working with automation tools and scripting languages such as Python, Perl, or Ruby. Candidates should also have a good understanding of DevOps methodologies, including agile development, continuous integration, and continuous delivery. There are many resources available to help candidates prepare for the JN0-421 exam, including study guides, practice exams, and training courses.

Juniper JN0-421 exam is designed to test your skills in automation and DevOps, with a focus on Juniper Networks technologies. Automation and DevOps, Specialist (JNCIS-DevOps) certification is ideal for IT professionals who are looking to advance their careers in network automation, cloud computing, and DevOps practices. The JN0-421 exam is part of the Juniper Networks Certification Program and is intended for professionals who have a solid foundation in networking and automation concepts.

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

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Juniper JN0-421 exam demo

Juniper JN0-421 Exam Syllabus Topics:

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

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