This video shows how to solve a subnetting problem:
You are designing a subnet mask for the 172.21.0.0 network. You want 70 subnets with up to 300 hosts on each subnet. What subnet mask do you use?
Watch video IPv4 Subnetting - Determining how many bits to borrow online without registration, duration hours minute second in high quality. This video was added by user Patrick Hornung 16 February 2016, don't forget to share it with your friends and acquaintances, it has been viewed on our site 62,810 once and liked it 792 people.