Junos OS Fundamentals:

• Software architecture
• Control and forwarding planes
• Routing Engine and Packet Forwarding Engine
• Transit traffic processing

Setting up JUNOS – in GNS3
User Interface:

• CLI functionality, modes, navigation, help
• Filtering output
• Active versus candidate configuration
• Reverting to previous configurations
• Modifying, managing, and saving configuration files
• Viewing, comparing, and loading configuration files
• J-Web (core/common functionality only)

Operational Monitoring and Maintenance

• Show and Monitor commands
• Network tools, such as ping, traceroute, telnet, SSH, and so on
• Junos OS installation and upgrades
• Root password recovery

Routing Fundamentals:

• Traffic forwarding concepts
• Routing tables, Routing versus forwarding tables
• Route preference, Routing instances
• Static routing, Advantages of and use cases for dynamic routing protocols

Routing Policies and Firewall Filters:

• Default routing policies
• Import and export policies
• Effect of policies on routes and routing tables
• Policy structure and terms
• Firewall filter concepts
• Filter match criteria and actions
• Unicast reverse-path-forwarding (RPF)