Exam Topics

The JN0-103 certification exam evaluates the students’ understanding of a wide range of skill areas. They are combined in a number of topics that are briefly discussed below:

• Junos OS Fundamentals

  Answering the questions within this objective, the test takers need to confirm their ability to define the concepts, functionality, or benefits of the key components of the Junos operating system. These include software architecture, packet forwarding engineer and routing engineer, control & forwarding planes, exception traffic, and transit traffic processing.

• Routing Policies and Firewall Filters

  This area includes identifying the functionality or concepts of firewall filters and routing policy on Junos devices. Answering the questions within this objective, the individuals should demonstrate their competency in describing how to monitor or configure firewall filters and routing policies on a Junos device, unicast reverse-path-forwarding (RPF), effects of filters on packets, filter match criteria and actions, filter structure & terms, firewall filter concepts, policy match criteria, actions, and match types, policy structure and terms, routing policy flow, import and export policies, and default routing policies.

• Routing Fundamentals

  This section includes identifying the basic functionality or routing concepts for Junos devices, describing how to monitor or configure basic routing elements for them. Also included are static routing, routing instances, route reference, routing vs. forwarding tables, traffic forwarding concepts, as well as use cases and advantages of routing protocols.

• User Interfaces

  Within this subject area, the applicants are expected to demonstrate that they possess the ability to define the concepts, functionality, or benefits of the Junos user interface. This includes CLI functionality, navigation, modes, and help. They also need to show that they are well-conversant with filtering output, reverting to prior configurations, active versus candidate configuration, managing, modifying, and saving configuration files, and loading, comparing, and viewing files. They also need to demonstrate their understanding of J-Web (common/core functionality only).

• Configuration Basis

  In the framework of this knowledge domain, the students need to validate their competency in identifying the major elements for configuring Junos devices. This means that they will be answering questions that focus on factory-default state, user accounts, initial configuration, login classes, user types & properties, user authentication methods, configuration groups, rescue configuration, logging and tracing, configuration archival, and additional initial configuration elements, such as Syslog, SNMP, and NTP.

• Operations Monitoring and Maintenance

  This topic evaluates the candidates’ skills in identifying the methods of maintaining or monitoring Junos devices, as well as monitoring and showing commands. They need to demonstrate their understanding of interface statistics & errors, Junos OS installation and upgrades, network tools, such as SSH, telnet, ping, traceroute, and so on. The learners also need to demonstrate their ability to describe maintenance and monitoring procedures for a Junos device, as well as shutting down and powering Junos devices.

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Juniper JN0-103 Exam Reference

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Taking the Juniper JN0-103 exam is the main requirement for getting the Juniper Networks Certified Associate (JNCIA-Junos) certification. This is an associate-level certificate, which is the first stage within the Data Center track of the Juniper Networks Certification Program (JNCP). This path enables the professionals to validate their competency in advanced data center technologies as well as associated configuration and troubleshooting skills. The successful candidates have a solid knowledge of Junos OS utilized in a data center environment.

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

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