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jncia

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