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Exam Vouchers: Junos, Associate (JNCIA-Junos) (JN0-103)

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  • Code: JN0-103

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Description

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Designed for networking professionals with beginner-intermediate knowledge of networking, this written exam verifies the candidate’s understanding of the core functionality of the Juniper Networks Junos OS.

Further Information

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JNCIA-Junos exam topics are based on the content of the recommended instructor-led training courses, as well as additional resources.

  • Exam code: JN0-103
  • Administered by Pearson VUE
  • Exam length: 90 minutes
  • Exam type: 65 multiple-choice questions
  • Scoring and pass/fail status is available immediately
  • Junos Software Release: 19.4

Objectives

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Content

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Identify 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

Identify 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)

Identify 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

Identify 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

Identify 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

Identify 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
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