Juniper JN0-103 exam dumps : Junos, Associate (JNCIA-Junos)

  • Exam Code: JN0-103
  • Exam Name: Junos, Associate (JNCIA-Junos)
  • Updated: Oct 21, 2026     Q & A: 141 Questions and Answers

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Juniper JN0-103 Exam Topics:

SectionObjectives
Configuration BasicsIdentify the main elements for configuring Junos devices
  • Factory-default state
  • Initial configuration
  • User accounts
  • Login classes
  • User authentication methods
  • Interface types and properties
  • Configuration groups
  • Additional initial configuration elements, such as NTP, SNMP, and syslog
  • Configuration archival
  • Logging and tracing
  • Rescue configuration

Describe how to configure basic components of a Junos device

User InterfacesIdentify the concepts, operation or functionality of the Junos user interface
  • CLI functionality
  • CLI modes
  • CLI navigation
  • CLI Help
  • Filtering output
  • Active versus candidate configuration
  • Reverting to previous configurations
  • Modifying, managing, and saving configuration files
  • Viewing, comparing, and loading configuration files
  • J-Web (core/common functionality only)
Operational Monitoring and MaintenanceIdentify methods of monitoring or maintaining Junos devices
  • Show commands
  • Monitor commands
  • Interface statistics and errors
  • Network tools, such as ping, traceroute, telnet, SSH, and so on
  • Junos OS installation and upgrades
  • Powering on and shutting down Junos devices
  • Root password recovery

Describe monitoring or maintenance procedures for a Junos device

Routing Policy and Firewall FiltersIdentify the concepts or functionality of routing policy and firewall filters on Junos devices
  • 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)

Describe how to configure or monitor routing policies and firewall filters on a Junos device

Junos OS FundamentalsIdentify the concepts, benefits or functionality of the core elements of the Junos OS
  • Software architecture
  • Control and forwarding planes
  • Routing Engine and Packet Forwarding Engine
  • Transit traffic processing
  • Exception traffic
Routing FundamentalsIdentify basic routing concepts or functionality for Junos devices
  • Traffic forwarding concepts
  • Routing tables
  • Routing versus forwarding tables
  • Route preference
  • Routing instances
  • Static routing
  • Advantages of and use cases for dynamic routing protocols

Describe how to configure or monitor basic routing elements for a Junos device

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Juniper JN0-103 Exam Reference

Target Audience

The Juniper JN0-103 exam is designed for those networking professionals who have beginner-intermediate knowledge of networking. The test accesses their expertise in Juniper development architecture and networking, as well as the core functionality of Juniper Networks Junos OS. Additionally, the applicants should be conversant with Junos OS operating and monitoring, firewall filters, basic routing and switching technologies.

Juniper JN0-103: Junos, Associate (JNCIA-Junos) Exam topics

Candidates must know the exam topics before they start of preparation. Because it will help them in hitting the core. Our Juniper JN0-103 exam dumps will include the following topics:

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

  • Control and forwarding planes
  • Transit traffic processing
  • Software architecture
  • Exception traffic
  • Routing Engine and Packet Forwarding Engine

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

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

Identify the main elements for configuring Junos devices

  • User accounts
  • Initial configuration
  • Rescue configuration
  • Login classes
  • Configuration groups
  • User authentication methods
  • Additional initial configuration elements, such as NTP, SNMP, and Syslog
  • Configuration archival
  • Factory-default state
  • Logging and tracing
  • Interface types and properties

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

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

Reference: https://www.juniper.net/us/en/training/certification/certification-tracks/ent-routing-switching-track?tab=jnciajunos

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