Welcome
  • Introduction
  • How to Make the Most of This Course
  • Course Material Download
  • The Study Plan
  • The Udemy Interface
  • Why Passing the CCNA is Going to Turbo Charge Your Career
How to Set Up the Lab
  • How to Set Up the Lab Introduction
  • Cisco Packet Tracer Installation
  • How to Use the Course Lab Exercises
  • Packet Tracer Installation Notes and FAQ
Host to Host Communications
  • Introduction
  • A (Very) Basic Introduction to Networking
  • The OSI Reference Model Overview
  • The TCP/IP Stack
  • The Upper OSI Layers
  • The Lower OSI Layers
The Cisco IOS Operating System
  • Introduction
  • Cisco Operating Systems
  • Connecting to a Cisco Device over the network
  • Making the Initial Connection to a Cisco Device
  • Navigating the Cisco IOS Operating System Part 1
  • Navigating the Cisco IOS Operating System Part 2
  • Cisco IOS Configuration Management
  • The IOS Operating System - Lab Exercises
OSI Layer 4 - The Transport Layer
  • Introduction
  • The Transport Layer Header, TCP and UDP
OSI Layer 3 - The Network Layer
  • Introduction
  • The IP Header
  • Unicast, Broadcast and Multicast Traffic
  • How to Count in Binary
  • IPv4 Addresses
  • Calculating an IPv4 Address in Binary
  • The Subnet Mask
  • Slash Notation
IP Address Classes
  • Introduction
  • Class A IP Addresses
  • IP Address Classes B and C
  • IP Address Classes D and E
Subnetting
  • Introduction
  • CIDR Classless Inter-Domain Routing
  • Subnetting Overview
  • Subnetting Class C Networks and VLSM
  • Subnetting Practice Questions
  • Variable Length Subnet Masking Example Part 1
  • Variable Length Subnet Masking Example Part 2
  • Subnetting Large Networks Part 1
  • Subnetting Large Networks Part 2
  • Subnetting on the 4th Octet - Written Example
  • Subnetting on the 3rd Octet - Written Example
  • Private IP Addresses Part 1
  • Private IP Addresses Part 2
  • Subnetting Table and Subnet Calculator
  • Where to Get More Subnetting Practice
  • Additional Subnetting Practice Sites
OSI Layer 2 - The Data-Link Layer
  • Introduction
  • Local Area Network Layer 2 - Ethernet
OSI Layer 1 - The Physical Layer
  • Introduction
  • Ethernet Connection Media
Cisco Device Functions
  • Introduction
  • Switches vs Hubs
  • Switch Operation
  • Routers
  • Other Cisco Devices
  • Cisco Device Functions - Lab Exercises
The Life of a Packet
  • Introduction
  • DNS The Domain Name System
  • DNS on Cisco Routers
  • ARP Address Resolution Protocol
  • ARP for Routed Traffic
  • Life of a Packet Example Part 1 - DNS
  • Life of a Packet Example Part 2 - HTTP
  • The Life of a Packet - Lab Exercises
The Cisco Troubleshooting Methodology
  • Introduction
  • The Cisco Troubleshooting Methodology
  • Cisco Troubleshooting Methodology - Lab Example
  • The Cisco Troubleshooting Methodology - Lab Exercises
Cisco Router and Switch Basics
  • Introduction
  • Basic Router and Switch Configuration
  • The Setup Wizard
  • Speed and Duplex Settings
  • CDP and LLDP
  • Basic Layer 1 and 2 Troubleshooting
  • Basic Layer 1 and 2 Troubleshooting - Lab Demo
  • Cisco Router and Switch Basics - Lab Exercises
Cisco Device Management
  • Introduction