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

JN0-421 real exams

Exam Code: JN0-421

Exam Name: Automation and DevOps, Specialist (JNCIS-DevOps)

Updated: Aug 31, 2026

Q & A: 66 Questions and Answers

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About Juniper JN0-421 Exam

To prepare for the JN0-421 exam, candidates can take advantage of various study resources available online, including study guides, practice exams, and hands-on labs. Juniper Networks also offers training courses and certification programs to help professionals prepare for the exam and gain practical skills in automation and DevOps.

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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.

The JN0-421 exam is a specialist-level certification exam and is part of the Juniper Networks Certification Program (JNCP). Automation and DevOps, Specialist (JNCIS-DevOps) certification is intended for individuals who have experience with Juniper technologies and who are looking to advance their skills in automation and DevOps. Automation and DevOps, Specialist (JNCIS-DevOps) certification demonstrates the candidate’s ability to automate and orchestrate Juniper networks, and it is a valuable asset for individuals seeking career advancement in the networking industry.

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)) Certification Exam is one of the most sought after certification exams in the field of network automation and DevOps. Automation and DevOps, Specialist (JNCIS-DevOps) certification exam validates the knowledge and skills of professionals who have expertise in automation and DevOps techniques, and helps them stand out from the competition.

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Juniper JN0-421 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: JET and Orchestration Tools15%- Ephemeral configuration
- Ansible for Junos
- Terraform basics
- Juniper Extension Toolkit (JET)
Topic 2: Python Automation20%- JSNAPy
- RPC execution
- Junos PyEZ library
- Configuration management
Topic 3: Platform Automation Overview15%- MGD-based automation
- JSD-based automation
- Telemetry concepts
- Junos automation architecture
Topic 4: Junos Automation Scripts15%- Op scripts
- Commit scripts
- Event scripts
- SNMP scripts
Topic 5: YANG Models and Data Formats15%- Jinja2 templating
- YANG model concepts
- JSON, XML, YAML
- OpenConfig
Topic 6: NETCONF, RESTCONF, and APIs20%- gRPC and gNMI
- NETCONF protocol
- XML API
- REST API / RESTCONF

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