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Juniper JNCIA-Junos (JN0-105) Practice Exam

JN0-105

Entry-level Juniper certification covering networking fundamentals, Junos OS basics, and routing concepts.

Exam Details

Official JN0-105 exam format

Questions
100
Time Limit
120 minutes
Passing Score
720/1000
Domains
7
2,000+
Practice Questions
100
Unique Practice Exams
Quick Answer: What You Need to Know About the Juniper JNCIA-Junos (JN0-105) Exam

The Juniper JNCIA-Junos (JN0-105) (JN0-105) is an industry-recognized credential administered by Juniper. The official exam features 100 questions within a 120-minute testing session, requiring a passing score of 720/1000 (72%). BetaStudy provides 2,000+ vetted practice questions mapped directly across all 7 syllabus domains with comprehensive answer rationales, timed exam simulations, and weak-area diagnostics.

ProviderJuniper
Exam Format100 Qs in 120m
Passing Target720/1000 (72%)
Available Practice2,000+ Questions

Exam Domains

The Juniper JNCIA-Junos (JN0-105) exam covers 7 domains with different weight percentages

Domain 1: Networking Fundamentals

15%

Identify the concepts and functionality of various fundamental elements of networking.

Topics covered:
  • Collision domains and broadcast domains
  • Function of routers and switches
  • Ethernet networks
  • Layer 2 addressing, including address resolution
  • Layer 3 /IP addressing, including subnet masks
  • IPv4 /IPv6
  • Subnetting and supernetting
  • Decimal to binary conversion
  • Longest match routing
  • CoS
  • Connection-oriented vs. connectionless protocols

Domain 2: Junos OS Fundamentals

15%

Identify the concepts, benefits, or functionality of the core elements of the Junos OS.

Topics covered:
  • Software architecture
  • Control and forwarding planes
  • Routing engine and packet-forwarding engine
  • Transit traffic processing
  • Exception traffic

Domain 3: User Interfaces

10%

Identify the concepts, operation, or functionality of the Junos user interface.

Topics covered:
  • CLI functionality
  • CLI modes
  • CLI navigation
  • CLI Help
  • Filtering output
  • Active vs. candidate configuration
  • Reverting to previous configurations
  • Modifying, managing, and saving configuration files
  • Viewing, comparing, and loading configuration files
  • J-Web (core/common functionality only)

Domain 4: Configuration Basics

15%

Identify the main elements for configuring Junos devices.

Topics covered:
  • Factory-default state
  • Initial configuration
  • User accounts
  • Login classes
  • User authentication methods
  • Interface types and properties
  • Configuration groups
  • Additional initial configuration elements
  • Configuration archival
  • Logging and tracing
  • Rescue configuration

Domain 5: Operational Monitoring and Maintenance

15%

Identify methods of monitoring or maintaining Junos devices.

Topics covered:
  • Show commands
  • Monitor commands
  • Interface statistics and errors
  • Network tools
  • Junos OS installation and upgrades
  • Powering on and shutting down Junos devices
  • Root password recovery

Domain 6: Routing Fundamentals

15%

Identify basic routing concepts or functionality for Junos devices.

Topics covered:
  • Traffic forwarding concepts
  • Routing tables
  • Routing vs. forwarding tables
  • Route preference
  • Routing instances
  • Static routing
  • Dynamic routing protocols

Domain 7: Routing Policy and Firewall Filters

15%

Identify the concepts or functionality of routing policy and firewall filters on Junos devices.

Topics covered:
  • Default routing policies
  • Import and export policies
  • Routing policy flow
  • Effect of policies on routes and routing tables
  • Policy structure and terms
  • Policy match criteria, match types, and actions
  • Firewall filter concepts
  • Filter structure and terms
  • Filter match criteria and actions
  • Effect of filters on packets
  • Unicast reverse-path-forwarding (RPF)

What You Get with BetaStudy

2,000+ Questions

Comprehensive question bank covering all exam domains

Timed Exams

Practice under real exam conditions with 120-minute timer

Detailed Explanations

Understand why answers are correct with detailed explanations

Progress Tracking

Track your performance by domain and watch yourself improve

Frequently Asked Questions

Common questions about the Juniper JNCIA-Junos (JN0-105) certification exam

How many questions are on the Juniper JNCIA-Junos (JN0-105) exam?
The Juniper JNCIA-Junos (JN0-105) exam contains 100 questions that must be completed within 120 minutes.
What is the passing score for Juniper JNCIA-Junos (JN0-105)?
You need to score 720 out of 1000 (72%) to pass the Juniper JNCIA-Junos (JN0-105) certification exam.
What topics are covered in the Juniper JNCIA-Junos (JN0-105) exam?
The exam covers 7 main domains: Networking Fundamentals, Junos OS Fundamentals, User Interfaces, Configuration Basics, Operational Monitoring and Maintenance, Routing Fundamentals, Routing Policy and Firewall Filters. Each domain has different weight percentages based on importance.
How can BetaStudy help me pass the Juniper JNCIA-Junos (JN0-105) exam?
BetaStudy provides 2,000+ practice questions covering all 7 exam domains, 100 unique practice exams that simulate real exam conditions, detailed explanations for every answer, and progress tracking to identify your weak areas.
Are the practice questions updated for the latest JN0-105 exam?
Yes, our questions are automatically updated whenever the official exam syllabus changes. We monitor the official Juniper certification page and regenerate questions to match the current exam format.

Official Resources

Official Exam Guide

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