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:

• 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.

• 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.

• 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.

• 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).

• 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.

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

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Juniper JN0-103 Exam Reference

Study Guides for JN0-103 Validation

These are the books for your use during JN0-103 exam revision:

• Juniper Junos JN0-103 Real Exam Preparation

  This study book for the JN0-103 test has been done by Sure Help and brings helpful practice materials to candidates who need them. The questions in the practice tests have been developed to reflect the actual exam, which means when you carry out your practice using them, you will get to know what the final validation might be coming with. With this manual, you access a dependable way to check how much content you have grasped and whether it is the right one for the official test.

• Day 1: Beginner’s Guide to Learning Junos

  This is a free study guide written by Martin Brown & others that you can easily download from a link on the Juniper Networks official page. It is written by a team of eight authors and covers the basics involved in Junos OS. It immerses itself into topics such as the Junos fundamentals, user interface, configuration basics involved in Junos, routing fundamentals, routing policies, filters for firewalls, and others. Such a book basically offers you a systematic way of working with Juniper networks and performing configuration as well as troubleshooting of the Junos OS and within a day, you will have captured what you need.

• Day 1: Exploring the Junos CLI

  A study guide like this for JN0-103 exam was written by Walter Goralski. It’s a popular guide for beginners who are just getting introduced to devices that run on Junos OS. By the way, the book can as well be used to refresh your knowledge concerning Junos OS when you are thinking about upgrading your skills. Some of the issues tackled by such a guide include navigating the operational mode for CLI as well as its configuration mode, modifying, saving, and loading arranging files while minimizing risk & concerning operations, using rudimentary commands for configuration, and utilizing the safety features available on the commit model for Junos OS.

• Junos OS for Dummies

  This JN0-103 test prep guide is presented in a way that makes it easy for a beginner to grasp the basics of Junos OS. The book’s authors include Walter J. Goralski, Cathy Gadecki, and Michael Bushong. It first explores the basics associated with Junos and takes you through the features related to it to ensure that you quickly pick and retain the knowledge of setting up, operating, and adding its key services. It further goes into tips that can help in rendering the network of your company to be more effective while revealing important cautions. Other things captured by such a book include the process of configuring default security characteristics for Junos, and a breakdown of advanced concepts to make it simple for you to grasp them gradually.

• Learning Junos OS from Zero to Learner

  This revision guide by Jawaid Iqbal starts with the fundamental concepts of Junos OS that include CLI structure as well as configuration and not forgetting troubleshooting. Also included are basics concerning products for Juniper. Those who study with such a book will get hold of knowledge on how to configure, verify, and troubleshoot one’s network in a procedural manner. The core aspect of the guide is in its ability to help a learner pass through the steps that are involved when configuring a typical OS for Junos.

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