Network+ Training Course Index: Professor Messer’s Success Bundle: Professor Messer’s Course Notes: Discount exam vouchers: - - - - - The “Magic Number” process of IP subnetting is a popular shortcut that requires a minimal amount of math. In this video, you’ll learn the magic number method and how to optimize the method during an exam. - - - - - Subscribe to get the latest videos: Calendar of live events: Frequently Asked Questions: FOLLOW PROFESSOR MESSER: Professor Messer website: Twitter: Facebook: Instagram: LinkedIn: