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

  • Exam Code: JN0-103
  • Exam Name: Junos, Associate (JNCIA-Junos)
  • Updated: Sep 28, 2026
  • Q&As: 141 Questions and Answers

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If you pass the Juniper JN0-103 exam with flying colors, you become entitled to the Juniper Networks Certified Associate certification. This certificate is known to be very beneficial, especially when it comes to career opportunities. The job roles that you can apply for after obtaining this certification include:

  • Network Architect
  • Senior System Engineer
  • Network Engineer
  • Network Security Engineer
  • Network Administrator
  • System Engineer

After earning the Juniper Networks Certified Associate certification, you will also get the payroll benefits. According to PayScale, a Network Engineer can expect an average annual salary of $79,000, while the average annual income for a System Engineer is about $84,000.

Juniper JN0-103 Exam Topics:

SectionObjectives
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

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

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)
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
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

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

Juniper JN0-103: Junos, Associate (JNCIA-Junos) Exam is related to JNCIA-Junos Certification. This exam validates the Candidate knowledge and skills of networking fundamentals, core functionality of the Juniper Networks Junos OS.

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

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