Resources - JNCIA-ER Exam Objectives (Exam: JN0-342)

This list is intended to provide a general view of the skill set required to successfully complete the specified certification exam. Topics listed are subject to change.

• Enterprise Router Overview, Management, and Architecture
• User Interface of Enterprise Routers
• Installation and Initial Configuration
• Monitor and Maintain J-series Platforms
• Routing Protocols
• Services
• Miscellaneous Features

Enterprise Router Overview, Management, and Architecture

• Describe network management features of Enterprise Routers
• Define the portions of the JUNOS software architecture. Include information on protected memory spaces, individual daemon process, and locations where the JUNOS software may operate.
• List the Enterprise Router Product Line
• Describe Transit and Host Processing
• Identify the difference between packet flow on the M7i/M10i and J-series routers
• Identify key differences between the M7i/M10i and J-series routers
• Identify Field-Replaceable Units on M7i/M10i and J-series routers

User Interface of Enterprise Routers

• List the various user authentication methods
• Describe the uses of login classes
• Describe authentication order
• Describe the way to access and navigate the J-Web interface
• Identify J-Web installation and operational status
• Identify the features of the JUNOS CLI. (cli modes, prompts, auto-complete, EMACS shortcuts, help, pipe)
• Identify the commands used in configuration mode (edit, set, delete, commit)
• Identify options for manipulating "saved" configuration files. Include rollback options, load options, and rollback file locations
• Describe the configuration hierarchy
• Describe active, candidate, and rollback configurations

Installation and Initial Configuration

• Define autoinstallation and describe its basic operation
• Describe how to activate the rescue and default configurations
• Identify Initial configuration steps via J-web (user accounts, SNMP, time, DNS, remote access)
• Identify Initial configuration steps via the CLI (user accounts, SNMP, time, DNS, remote access)
• Configure an interface (CLI and J-Web)
• List options for initial configuration and platform dependencies of those options.

Monitor and Maintain J-series Platforms

• Identify the commands to monitor enterprise router system components (CLI and J-Web)
• Identify the commands to monitor enterprise router Chassis (CLI and J-Web)
• Identify valid options for interface names, logical unit and protocol families within the JUNOS software
• Describe how to monitor interfaces in real-time
• Describe the information contained within the show interfaces extensive command
• Describe the uses of network utilities such as ping and traceroute
• Describe system logging and tracing
• Identify Commands needed to manage the licenses on a J-series
• Describe the boot devices available to a Juniper Networks router
• List the upgrade options available for the router's software
• Identify the system snapshot options
• Perform file system maintenance on the router.
• Perform password recovery on the router.

Routing Protocols

• Describe JUNOS software routing policy design considerations including: import and export, when to define routing policies, components of a routing policy (terms, match criteria, actions), default routing policy actions, and how routing policies are evaluated.
• List the main reasons to create and apply policies.
• Describe the configuration of Static Routes
• Describe the basic characteristics of the RIP protocol
• Identify the steps needed to configure RIP
• Identify commands used to monitor and troubleshoot an RIP network.
• Describe OSPF area types and router types
• Identify the steps needed to configure OSPF
• Identify commands used to monitor and troubleshoot an OSPF network.
• Describe charecteristics of link-state routing protocols
• Describe the purpose and operation of multiple routing tables
• Describe route preferences
• List the support IGPs and describe the purpose and benefits of each.

Services

• List the available interfaces used for services and describe the benefits and features for each type
• Describe the purpose and benefits of MLPPP
• Identify MLPPP configuration and monitoring options
• Describe the purpose and benefits of NAT and PAT
• Identify NAT and PAT configuration and monitoring options

Miscellaneous Features

• Describe the benefits and basic operation of VRRP
• Identify configuration and monitoring options of VRRP
• Describe the benefits and basic operation of DHCP
• Identify configuration and monitoring options for DHCP