Networking 101: Subnetting
Subnetting means dividing a big network into smaller logical networks in order to reduce the complexities that arise if we had to analyze a huge network as a whole. Subnetting is an important part of networking. Subnetting is also an essential part when it comes to CCNA, CompTIA N+, etc. Here the 255.255.255.0 is the subnet. The subnet has 4 parts in which each part consists of 8 bits(1's and 0's) so this 255 is actually made up of 8 bits. If all the 8 1's are active then it becomes 255 and if all 0's are active, it becomes 0. Thus the arrangement of these 0's and 1's determines what that the subnet would be. 128 64 32 16 8 4 2 1 128 64 32 16 8 4 2 1 128 64 32 16 8 4 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 [255] [255]