Network number and subnet

[Networking]

This is a question i got and i just dont under stand how to do it. *An organization is assigned the network number 172.18.0.0/16, and it must create a set of subnets that supports up to 90 hosts on each subnet. * How do you Define subnet mask for this organization What is the IP number...

[broadmind]

An IP address has two components, the network address and the host address. A subnet mask separates the IP address into the network and host addresses (<network><host>). Subnetting further divides the host part of an IP address into a subnet and host address (<network><subnet><host>). It is called a subnet mask because it is used to identify network address of an IP address by perfoming bitwise AND operation on the netmask.

A Subnet mask is a 32-bit number that masks an IP address, and divides the IP address into network address and host address. Subnet Mask is made by setting network bits to all "1"s and setting host bits to all "0"s. Within a given network, two host addresses are reserved for special purpose. The "0" address is assigned a network address and "255" is assigned to a broadcast address, and they cannot be assigned to a host. If you want to get your ip address, visit Ip-details.com