JNCIA (JN0-103) Cert Prep: 3 Routing Fundamentals

Get the information you need to master and pass the JNCIA exam.

Introduction

• Junos fundamentals: Cert prep

1. Networking Fundamentals

• OSI model
• TCP/IP model
• Collision domains, broadcast domains, and VLANs
• Network devices
• Layer 2 addressing
• Introduction to IPv4
• Decimal to binary conversion
• Subnet mask and its importance
• Subnetting: Example one
• Subnetting: Example two
• Subnetting: Example three
• Subnetting: Example four
• Supernetting
• IPv6
• Class of service
• Connection-oriented vs. connectionless protocols

2. Junos Fundamentals

• Junos software architecture
• RE and PFE
• Protocol daemons
• Transit and exception traffic

3. Junos User Interface

• CLI functionality
• CLI modes
• CLI navigation
• CLI help
• Output levels
• Filtering output
• Active vs. candidate configuration
• Configure command
• More navigation commands
• Configuration hierarchy
• Junos commit
• Junos rollback
• Junos configuration files
• Junos load command
• J-Web

4. Junos Configuration Basics

• Factory default configuration
• Initial configuration
• Login class
• User accounts
• Authentication methods
• Introduction to interfaces
• Interface naming convention
• Interface properties
• Interface address configuration
• Configuration groups
• Introduction to system logging
• Configuring syslog
• Tracing
• Network Time Protocol
• Simple Network Management Protocol
• Rescue config
• Backups

5. Operational Monitoring and Maintenance

• System and chassis information
• Interface monitoring
• Network utilities
• Junos naming convention
• Snapshots
• Upgrading Junos
• Unified ISSU
• Root password recovery
• Important commands

6. Routing Fundamentals

• Introduction to routing
• Static vs. dynamic routing
• Junos routing
• Routing and forwarding tables
• Route preference
• Static routing, part 1
• Static routing, part 2
• Dynamic routing
• Longest route matching
• Routing instances

7. Routing Policy and Firewall Filters

• Routing policy overview
• Default routing policies
• Building block of routing policy
• Routing policy example
• Prefix lists
• Prefix list vs. prefix list filter
• Route filters
• Policy chaining
• Applying routing policies
• Firewall filters
• Configuring firewall filters
• Traffic policing
• Unicast reverse-path-forwarding
• Configuring unicast reverse-path-forwarding