Juniper Networks · Official Blueprint · Last reviewed May 2026
The official Juniper Networks JNCIA-JUNOS exam covers 5 domains. Domain weights tell you exactly how much of the exam each topic represents — and where to invest your study time.
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.
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.
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.
Covers the topics, concepts, and applied skills examined under the Junos Routing Fundamentals domain. Study the official exam objectives and practise questions in this area to build confidence and accuracy before your exam.
Covers the topics, concepts, and applied skills examined under the Routing Policy and Firewall Filters domain. Study the official exam objectives and practise questions in this area to build confidence and accuracy before your exam.
The heaviest domain on the JNCIA-JUNOS is "Networking Fundamentals" at null%. Start here and return to it regularly.
Allocate study time proportional to domain weight — a 25% domain deserves roughly 25% of your prep hours.
Never skip a low-weight domain. A 10% domain still represents 5–7 exam questions — enough to make the difference between pass and fail.
Use Courseiva domain analytics to track your accuracy per domain automatically. The system routes extra questions to your weak areas.
Courseiva tracks your accuracy per domain automatically and routes you toward your weakest areas — no manual configuration needed.