JNCIA-Junos
Juniper JNCIA-Junos (JN0-105)
The Juniper Networks Certified Associate – Junos (JNCIA-Junos, exam JN0-104) is the entry-level credential for the Juniper Networks certification program. It validates foundational knowledge of the Junos operating system architecture, networking fundamentals, CLI usage, and basic device configuration. JNCIA-Junos is the prerequisite for all Juniper specialist tracks including JNCIS-ENT, JNCIS-SP, and JNCIS-SEC.
JNCIA-Junos Exam Overview
| Detail | Information |
|---|---|
| Full Name | Juniper JNCIA-Junos (JN0-105) |
| Governing Body | Juniper Networks |
| Number of Questions | 65 |
| Time Limit | 90 minutes |
| Passing Score | 61% (approx 40/65) |
| Exam Fee | $200 USD |
| Category | IT Certifications |
| C3RT App Available On | iPhone, iPad, and Mac |
| Official Source | Juniper Networks official website ↗ |
JNCIA-Junos Content Areas and Domains
| Domain / Content Area | Exam Weight |
|---|---|
| Networking Fundamentals | 23% |
| Junos OS Fundamentals | 26% |
| User Interface Options | 5% |
| Junos Configuration Basics | 17% |
| Operational Monitoring and Maintenance | 14% |
| Routing Fundamentals | 15% |
Domain weights are approximate and based on the Juniper Networks content outline. Always verify at the official source before your exam.
Topics Covered
- ✓ OSI Model, TCP/IP, and Ethernet Fundamentals
- ✓ Junos OS Architecture — Routing Engine, Packet Forwarding Engine, microkernel
- ✓ Junos CLI — operational and configuration modes, hierarchy, commit model
- ✓ J-Web Interface Navigation
- ✓ Initial Junos Device Configuration (interfaces, hostname, system settings)
- ✓ Routing Concepts — Static Routes, RIB, FIB, route preference
- ✓ Operational Monitoring — show commands, logging, system events
- ✓ Junos Software Maintenance — upgrade, rollback, rescue configuration
How C3RT Helps You Pass the JNCIA-Junos
Adaptive Practice
Questions adapt to your weak areas automatically so every study session on the JNCIA-Junos is time well spent.
Diagnostic Mocks
Full-length mock exams timed to the real JNCIA-Junos format with detailed score breakdowns by topic.
Mistake Bank
Every wrong answer is saved for targeted re-drill. The system resurfaces your mistakes until they stick.
Native on iOS & Mac
Built with SwiftUI, not a web wrapper. Instant load, offline support, hardware-speed rendering.
JNCIA-Junos Frequently Asked Questions
What does JNCIA-Junos stand for?
JNCIA-Junos stands for Juniper JNCIA-Junos (JN0-105). It is administered by Juniper Networks.
Who administers the JNCIA-Junos?
The Juniper JNCIA-Junos (JN0-105) (JNCIA-Junos) is administered by Juniper Networks. For official information, visit the Juniper Networks website.
How many questions is the JNCIA-Junos?
The JNCIA-Junos consists of 65 questions. Candidates are given 90 minutes to complete the exam.
What is the passing score for the JNCIA-Junos?
The passing score for the JNCIA-Junos is 61% (approx 40/65), as set by Juniper Networks. Scoring methodology and passing standards may be updated periodically. Always verify current requirements with the governing body.
How much does the JNCIA-Junos exam cost?
The JNCIA-Junos exam fee is $200 USD. This fee is set by Juniper Networks and may vary by testing centre, region, or membership status. Additional fees for registration or rescheduling may apply.
Is JNCIA-Junos a good starting point for network engineering?
Yes — for engineers working with Juniper equipment, JNCIA-Junos is the essential foundation. It covers the Junos CLI, commit model, and routing architecture that underpins all Juniper platforms from SRX security to MX routers to EX switches. Most enterprise and service provider networks use Juniper alongside Cisco, making JNCIA-Junos a complement to CCNA.
How is Junos different from Cisco IOS?
Junos uses a hierarchical configuration model committed atomically — you make changes in a candidate configuration, review them, then commit. This differs from Cisco IOS where commands take effect immediately. Junos also uses a single consistent CLI across all hardware platforms (routers, switches, firewalls), whereas Cisco IOS variants differ by platform.
What is the JNCIA-Junos exam format?
65 multiple-choice questions in 90 minutes, with a passing score of 61% (approximately 40 correct). The exam tests conceptual knowledge rather than hands-on performance. Juniper provides a free Day One book library and open lab environments to assist preparation.
What certifications come after JNCIA-Junos?
JNCIS-ENT (Enterprise Routing and Switching Specialist) and JNCIS-SP (Service Provider Routing Specialist) are the most common next steps. JNCIS-SEC covers security with SRX firewalls. All JNCIS-level exams require JNCIA-Junos as a prerequisite.
C3RT is a native iOS and macOS exam preparation platform covering the Juniper JNCIA-Junos (JN0-105) (JNCIA-Junos), a IT Certifications certification, administered by Juniper Networks. C3RT is not affiliated with or endorsed by Juniper Networks. Certification names and trademarks are the property of their respective organisations. For official exam registration, eligibility requirements, and content outlines, visit the Juniper Networks official website ↗ .