Try and practice the latest Juniper : JN0-221 real questions & answers
Updated: Aug 31, 2026
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Juniper JN0-221 Exam Overview:
| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Automation and DevOps, Associate |
| Exam Number: | JN0-221 |
| Related Certifications: | JNCIP-DevOps JNCIS-DevOps |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 years |
| Passing Score: | Not publicly disclosed (scaled scoring) |
| Exam Format: | Multiple choice |
| Exam Price: | $200 USD |
| Real Exam Qty: | 65 |
| Available Languages: | English |
| Recommended Training: | Juniper Learning Portal Introduction to Junos Automation and DevOps (IJAUT) |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | Juniper JN0-221 Sample Questions |
| Exam Way: | In-person at Pearson VUE test centers or online proctored |
| Pre Condition: | No formal prerequisites; basic networking knowledge and familiarity with scripting recommended |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/certification-tracks/devops/jncia-devops.html |
Juniper Certified Network Engineer’s Job Description
Juniper certified network engineers take pride in supporting Juniper Network Architecture. In many organizations, these individuals implement and offer technical support on a wide range of network topologies including WAN and LAN among other customer-focused internet applications. They are skilled in using a series of protocols including TCP/IP, which will help them manage Juniper tools and technologies such as the PTX hardware, SRX, EX, and MX. In summary, the key responsibilities of Juniper certified network engineers include the following:
- Testing and documenting TCP/IP performance
- Using a wide range of network diagnostic tools
- Installing, configuring, and monitoring vital components of network security protocols
- Documenting the cause analysis and providing effective solutions to mitigate the possible challenges
- Configuring operational routing procedures and policies to guarantee first-rate performance
- Identifying and recommending suitable network designs that ensure efficiency
A typical Juniper network engineer earns an average salary of $99k per year, according to Glassdoor’s survey. Of course, this value may vary depending on different factors such as location, experience, and skills but it has never gone below $82k per year.
Topics of Automation and DevOps, Associate JN0-221 Exam
Candidates must know the exam topics before they start preparation. Because it will help them in hitting the core. Juniper JN0-221 exam test will include the following topics:
Junos Automation Stack and DevOps Concepts Identify concepts and general features of Junos automation and DevOps.
- Automation APIs
- Automation frameworks
- Automation tools
- DevOps culture, practices, and tools
XML/NETCONF Identify concepts and general functionality of XML, the XML API, XPath, or NETCONF.
- XPath concepts and syntax
- XML concepts and syntax
- XML API concepts and syntax
- NETCONF concepts
Data Serialization Identify the concepts, benefits, or operation of data serialization.
- JSON
- YAML
Ansible Identify the use of Ansible for automating Junos tasks.
- Basic inventory files
- Architecture and capabilities
- Playbooks
- Juniper Junos Ansible modules: modifying configurations, operations commands, and software updates
Python/PyEZ Identify Python or Junos PyEZ tools for automating Junos.
- Device status and configuration handling
- RPCs
- PyEZ exception handling
- Syntax and concepts
REST API Identify the concepts, benefits, or operation of the Junos REST API.
- Using curl to access the REST API
- Using the REST API Explorer
- Configuring the Junos REST API
Reference: https://www.juniper.net/us/en/training/certification/certification-tracks/devops/?tab=jnciadevops
Juniper JN0-221 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Data Serialization and YANG | 15% | - YANG data modeling overview - JSON and YAML formats |
| XML, NETCONF, and REST API | 25% | - Junos REST API usage - NETCONF protocol and operations - XML syntax and concepts - XPath fundamentals |
| Ansible Automation | 15% | - Ansible fundamentals and inventory files - Playbook creation and execution - Juniper Junos Ansible modules |
| Junos Automation Stack and DevOps Concepts | 20% | - Junos automation architecture and components - Version control basics - DevOps culture, practices, and tools |
| Python and PyEZ Automation | 25% | - Python basics and syntax - Error and exception handling - Modifying and applying configurations - Retrieving device status and configuration - Junos PyEZ library installation and usage |
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