How to subnet the easy way - https://amzn.to/2DMA9Hy

101 Labs - IP Subnetting - https://amzn.to/2qWljqh

Use this chart for fast subnettting in:

- IT exams such as Cisco CCNA and CompTIA Network+
- Technical job interviews
- Fixing IP subnetting issues on live networks

You just tick the boxes to find the correct subnet, the subnet increment, how many subnets and how many hosts per subnet.

It's fast, accurate and easy.