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The JN0-421 exam is an ideal certification for professionals who work in network operations, network engineering, software development, and DevOps. It is also a valuable certification for professionals who want to enhance their career prospects and demonstrate their expertise in automation and DevOps.
Reference: https://www.juniper.net/us/en/training/certification/certification-tracks/devops?tab=jncis-devops
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The Automation and DevOps, Specialist (JNCIS-DevOps) certification exam consists of sixty-five multiple-choice questions and is timed for ninety minutes. JN0-421 exam is available worldwide and is administered by Pearson VUE, a leading provider of certification exams. JN0-421 exam fee varies by location, and candidates can register for the exam through the Juniper Networks website.
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Juniper JN0-421 (Automation and DevOps, Specialist (JNCIS-DevOps)) certification exam is designed to validate the skills and knowledge of the individuals in the field of automation and DevOps. Automation and DevOps, Specialist (JNCIS-DevOps) certification exam is intended for those who are responsible for automating, managing, and deploying Juniper Networks devices and applications. It is ideal for network professionals, system administrators, and developers who want to enhance their skills in automation and DevOps.
Juniper JN0-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
| Topic 1: Platform Automation Overview | 15% | - Telemetry concepts
- Junos automation architecture
- JSD-based automation
- MGD-based automation
|
| Topic 2: NETCONF, RESTCONF, and APIs | 20% | - NETCONF protocol
- XML API
- REST API / RESTCONF
- gRPC and gNMI
|
| Topic 3: Python Automation | 20% | - Junos PyEZ library
- Configuration management
- RPC execution
- JSNAPy
|
| Topic 4: JET and Orchestration Tools | 15% | - Ephemeral configuration
- Ansible for Junos
- Terraform basics
- Juniper Extension Toolkit (JET)
|
| Topic 5: YANG Models and Data Formats | 15% | - JSON, XML, YAML
- YANG model concepts
- Jinja2 templating
- OpenConfig
|
| Topic 6: Junos Automation Scripts | 15% | - Event scripts
- Commit scripts
- Op scripts
- SNMP scripts
|