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HomeCertificationsJNCIA-JUNOSExam Domains

Juniper Networks · Official Blueprint · Last reviewed May 2026

JNCIA-JUNOS Exam Domains & Blueprint

The official Juniper Networks JNCIA-JUNOS exam covers 6 domains. The vendor does not publish percentage weights for these domains — treat each as an equal part of the exam blueprint.

Exam OverviewPractice TestStudy GuideSample QuestionsExam Domains

JNCIA-JUNOS Domain Weight Summary

#DomainWeightQuestions
1User Interfaces
—
97 practice Q
2Junos Configuration Basics
—
94 practice Q
3Operational Monitoring and Maintenance
—
90 practice Q
4Routing Fundamentals
—
97 practice Q
5Networking Fundamentals
—
46 practice Q
6Junos OS Fundamentals
—
90 practice Q

Detailed Domain Breakdown

Domain 1: User Interfaces

97 practice questions

Covers the topics, concepts, and applied skills examined under the User Interfaces domain. Study the official exam objectives and practise questions in this area to build confidence and accuracy before your exam.

Practice User Interfaces questions

Domain 2: Junos Configuration Basics

94 practice questions

Covers the topics, concepts, and applied skills examined under the Junos Configuration Basics domain. Study the official exam objectives and practise questions in this area to build confidence and accuracy before your exam.

Practice Junos Configuration Basics questions

Domain 3: Operational Monitoring and Maintenance

90 practice questions

Covers the topics, concepts, and applied skills examined under the Operational Monitoring and Maintenance domain. Study the official exam objectives and practise questions in this area to build confidence and accuracy before your exam.

Practice Operational Monitoring and Maintenance questions

Domain 4: Routing Fundamentals

97 practice questions

Covers the topics, concepts, and applied skills examined under the Routing Fundamentals domain. Study the official exam objectives and practise questions in this area to build confidence and accuracy before your exam.

Practice Routing Fundamentals questions

Domain 5: Networking Fundamentals

46 practice questions

Covers the topics, concepts, and applied skills examined under the Networking Fundamentals domain. Study the official exam objectives and practise questions in this area to build confidence and accuracy before your exam.

Practice Networking Fundamentals questions

Domain 6: Junos OS Fundamentals

90 practice questions

Covers the topics, concepts, and applied skills examined under the Junos OS Fundamentals domain. Study the official exam objectives and practise questions in this area to build confidence and accuracy before your exam.

Practice Junos OS Fundamentals questions

How to Use Domain Weights in Your Study Plan

The vendor does not currently publish percentage weights for these domains, so Courseiva does not rank them by weight.

Work through each domain systematically — cover fundamentals first, then applied and scenario-based topics.

Never skip a domain regardless of perceived importance. Full coverage is required to pass.

Use Courseiva domain analytics to track your accuracy per domain and route extra questions to your weak areas.

Practice every JNCIA-JUNOS domain

Courseiva tracks your accuracy per domain automatically and routes you toward your weakest areas — no manual configuration needed.

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JNCIA-JUNOS Concept Guides

Juniper JNCIA-Junos

The JNCIA-Junos (JN0-105) is Juniper Networks' associate-level certification for the Junos operating system — the OS powering Juniper's routers (MX series), switches (EX and QFX series), and security platforms (SRX series).