Associate Level (JNCIA)

Associate Level (JNCIA)

All Courses Idea

JNCIA- Junos

Networking Fundamentals

Identify the concepts and functionality of various fundamental elements of networking

  • Collision domains and broadcast domains

  • Function of routers and switches

  • Optical network fundamentals – SONET/SDH, OTN

  • Ethernet networks

  • Layer 2 addressing, including address resolution

  • IPv4 and IPv6 fundamentals

  • Layer 3 / IP addressing, including subnet masks

  • Subnetting and supernetting

  • Decimal to binary conversion

  • Longest match routing

  • Connection-oriented vs. connectionless protocols

Junos OS Fundamentals

Identify the concepts, benefits and functionality of the core elements of the Junos OS

  • Junos device portfolio – product families, general functionality

  • Software architecture

  • Control and forwarding planes

  • Routing Engine and Packet Forwarding Engine

  • Protocol daemons

  • Transit traffic processing

  • Exception traffic

User Interfaces

Identify the concepts, operation and functionality of the Junos user interfaces

  • CLI functionality

  • CLI modes

  • CLI navigation

  • CLI Help

  • Filtering output

  • Active vs. candidate configuration

  • Reverting to previous configurations

  • Modifying, managing, and saving configuration files

  • Viewing, comparing, and loading configuration files

  • J-Web-core/common functionality

Junos Configuration Basics

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-NTP, SNMP, syslog, etc.

  • Configuration archival

  • Logging and tracing

  • Rescue configuration

  • Describe how to configure basic components of a Junos device

Operational Monitoring and Maintenance

Identify methods of monitoring and maintaining Junos devices

  • Show commands

  • Monitor commands

  • Interface statistics and errors

  • Network tools-ping, traceroute, telnet, SSH, etc.

  • Real-time performance monitoring (RPM)

  • Junos OS installation

  • Software upgrades

  • Powering on and shutting down Junos devices

  • Root password recovery

  • Describe monitoring and maintenance procedures for a Junos device

Routing Fundamentals

Identify basic routing concepts and functionality for Junos devices

  • Packet forwarding concepts

  • Routing tables

  • Routing vs. forwarding tables

  • Route preference

  • Routing instances

  • Static routing

  • Advantages of / use cases for dynamic routing protocols

  • Describe how to configure and monitor basic routing elements for a Junos device

Routing Policy and Firewall Filters

Identify the concepts and 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

  • Firewall filter concepts

  • Filter match criteria and actions

  • Effect of filters on packets

  • Unicast reverse-path-forwarding (RPF)

  • Describe how to configure and monitor routing policies and firewall filters on a Junos device