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JUNIPER NETWORKS

Juniper Networks Certified Associate, Automation and DevOps

JN0-224

The Juniper Networks Certified Associate, Automation and DevOps (JNCIA-DevOps) certification validates your understanding of DevOps and automation concepts as they apply to Juniper devices and solutions. Designed for networking professionals with introductory-level knowledge of automation tools and best practices, this credential demonstrates your competency in common scripting languages and tools for automating device and network functions. It is the first step in the Automation and DevOps track, setting the foundation for the Specialist-level JNCIS-DevOps certification.

Practice Free Questions

424 practice questions · Updated 2026-07-30

5Domains
19Objectives
132Concepts
424Questions

JN0-224 Curriculum

Every domain, objective, and concept the JN0-224 exam measures.

Automation Tools

7 concepts · 29 questions
  1. Automation Tools Overview
  2. Ansible for Junos
  3. Python and PyEZ
  4. NETCONF and YANG
  5. REST API and Junos
  6. Terraform for Junos
  7. Tool Selection Criteria

Automation Frameworks

7 concepts · 27 questions
  1. Automation Frameworks Overview
  2. Ansible for Junos
  3. Python and PyEZ
  4. NETCONF and YANG
  5. REST API and Junos
  6. Jinja2 Templates
  7. Automation Framework Selection

Automation APIs

6 concepts · 25 questions
  1. REST API fundamentals
  2. Junos REST API
  3. Junos XML API
  4. Junos NETCONF API
  5. API authentication and security
  6. API error handling

DevOps Culture, Practices, and Tools

8 concepts · 32 questions
  1. DevOps principles
  2. Continuous integration and continuous delivery
  3. Infrastructure as code
  4. Version control systems
  5. Automation tools
  6. Monitoring and logging
  7. Collaboration and communication
  8. Continuous improvement

XML Concepts and Syntax

7 concepts · 15 questions
  1. XML Document Structure
  2. XML Elements and Hierarchy
  3. XML Attributes
  4. Well-Formed XML
  5. XML Namespaces
  6. XML Schema and Validation
  7. XPath Basics

XPath Concepts and Syntax

7 concepts · 16 questions
  1. XPath Overview
  2. XPath Syntax Basics
  3. Path Expressions
  4. Predicates
  5. XPath Operators and Functions
  6. Namespaces in XPath
  7. XPath in NETCONF Context

NETCONF Concepts

9 concepts · 29 questions
  1. NETCONF Overview
  2. NETCONF Architecture
  3. NETCONF Transport Protocol
  4. NETCONF Message Layers
  5. NETCONF Operations
  6. NETCONF Capabilities
  7. NETCONF Data Modeling
  8. NETCONF and XML
  9. NETCONF vs. Other Protocols

XML API Concepts and Syntax

6 concepts · 24 questions
  1. XML API Overview
  2. XML Syntax Fundamentals
  3. Junos XML Namespaces
  4. XML API Operations
  5. XML Configuration and Operational Data
  6. XML API Error Handling

YAML

6 concepts · 26 questions
  1. YAML Syntax Fundamentals
  2. YAML Data Types
  3. YAML Anchors and Aliases
  4. YAML Multiline Strings
  5. YAML Comments and Document Separation
  6. YAML in Automation Context

JavaScript Object Notation (JSON)

6 concepts · 11 questions
  1. JSON Syntax
  2. JSON Data Types
  3. JSON Formatting
  4. JSON Parsing
  5. JSON Serialization
  6. JSON in Automation

Python Syntax and Concepts

10 concepts · 22 questions
  1. Python Syntax Fundamentals
  2. Control Flow
  3. Functions and Scope
  4. Data Structures
  5. Error Handling
  6. Modules and Imports
  7. File I/O
  8. PyEZ Basics
  9. PyEZ Configuration Management
  10. PyEZ Tables and Views

Junos Snapshot Administrator (JSNAPy)

8 concepts · 29 questions
  1. JSNAPy Overview
  2. JSNAPy Installation
  3. JSNAPy Configuration
  4. Snapshot Creation
  5. Snapshot Comparison
  6. Snapshot Reporting
  7. JSNAPy Integration with PyEZ
  8. JSNAPy CLI Usage

Jinja2

6 concepts · 16 questions
  1. Jinja2 template basics
  2. Template variables
  3. Template filters
  4. Template control structures
  5. Template inheritance and includes
  6. Rendering templates with PyEZ

Remote Procedure Calls (RPCs)

7 concepts · 21 questions
  1. RPC Basics
  2. RPC Naming Conventions
  3. Executing RPCs in PyEZ
  4. Passing Arguments to RPCs
  5. Handling RPC Responses
  6. RPC Error Handling
  7. Common RPC Examples

PyEZ Exception Handling

6 concepts · 15 questions
  1. Understanding PyEZ Exception Hierarchy
  2. Catching PyEZ Exceptions
  3. Handling Connection and Authentication Errors
  4. Handling RPC and Configuration Errors
  5. Using Exception Attributes and Methods
  6. Implementing Robust Error Handling

Device Status and Configuration Handling

7 concepts · 14 questions
  1. Device Status Retrieval
  2. Configuration Retrieval
  3. Configuration Modification
  4. Configuration Comparison
  5. Configuration Rollback
  6. Commit Operations
  7. Configuration Validation

Junos REST API

10 concepts · 33 questions
  1. Junos REST API Overview
  2. REST API Methods and Operations
  3. REST API Resource Paths
  4. REST API Authentication and Security
  5. REST API Data Formats
  6. REST API Error Handling
  7. REST API Configuration Management
  8. REST API Operational Commands
  9. REST API RPC Execution
  10. REST API Scripting and Automation

Junos REST API Explorer

5 concepts · 23 questions
  1. Junos REST API Explorer Overview
  2. Accessing the Junos REST API Explorer
  3. Exploring API Endpoints and Resources
  4. Executing API Requests
  5. Interpreting API Responses

cURL Access for the REST API

4 concepts · 17 questions
  1. cURL basics
  2. HTTP methods with cURL
  3. Headers and authentication
  4. Handling responses
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Practice Free Questions

Percentages reflect share of the current practice bank, not official exam weightings — no structured per-skill weight is published for JN0-224, so none is invented.