Subnetting Concepts: This 1st video is just to get you oriented to why subnetting is used/needed and the "Concept" behind it...

IP Address Classes: The 3 Most Used Classes of IP Addresses and How They Are Used and Understood

AND-ing: The AND-ing process used between the Subnet Mask and the IP Address...

Variable Length Subnet Masks (VLSM): How to Use "Classless" Subnet Masks to Create More Subnets In a Range of IP Addresses

SUPERnetting: Why Do We Need SUPER-netting?

CHEAT SHEET: The Easiest Method for Solving Subnetting Questions

I'm opening enrollment to my Network+ Course soon...

But you have to hurry and sign up for the list NOW to get in!