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

  • Exam Code: JN0-421
  • Exam Name: Automation and DevOps, Specialist (JNCIS-DevOps)
  • Updated: Aug 27, 2026     Q & A: 66 Questions and Answers

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Juniper JN0-421 Exam Topics:

SectionObjectives
Data Serialization and TemplatingDescribe the concepts, benefits, or operation of data serialization
  • YAML
  • JSON
  • Jinja2
  • XML
Juniper Extension ToolkitIdentify the concepts, general features, or functionality of the Juniper Extension Toolkit
  • Service APIs
  • gRPC/gNMI (network management interface)
  • Notification APIs
  • Fast Programmatic Configuration (Ephemeral DBs)
Platform Automation OverviewIdentify concepts, general features, or functionality of Junos platform automation
  • MGD-based automation
  • Telemetry concepts
  • JSD-based automation
Stateful Configuration (Ansible/SALT)Describe how to use Ansible for automating Junos
  • Playbooks
  • Templates (Jinja2)
  • Describe how to use SALT for automating Junos
  • Tower
  • Pillar
  • Runner
PythonDescribe Python tools for automating Junos
  • PyEZ
  • RPCs
  • PyEZ exception handling
  • REST
  • JSNAPy
  • Jinja2
Junos Automation ScriptsDescribe the concepts, benefits, or operation of automation scripts for Junos
  • Commit, Op, Event, or SNMP scripts
  • Python
  • SLAX
NETCONF/XML APIDescribe the concepts, benefits, or operation of automation access methods
  • XML API
  • NETCONF
  • REST API
YANG/OpenConfigIdentify the concepts and general features of Junos support for YANG models
  • Implementation concepts

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

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Juniper JN0-421 Exam Certification Details:

Exam CodeJN0-421 JNCIS-DevOps
Duration90 minutes
Sample QuestionsJuniper JN0-421 Sample Questions
Exam RegistrationPEARSON VUE
Recommended TrainingJunos Platform Automation and DevOps (JAUT)
Number of Questions65
Exam Price$300 USD
Passing ScoreVariable (60-70% Approx.)
Exam NameAutomation and DevOps Specialist

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