An IP address like 13072241196 belongs to a standard Class B

An IP address like 130.72.241.196 belongs to a standard Class B network. Without subnetting, this network can host 65,536 computer or devices, each occupies an IP address like the one given. If the company wants to keep only 1/16 of these many possible host IDs and lease the rest of 15/16 of 65,536 host IDs to 15 other companies, each has its own network ID, including the original company. What subnet mask will you design to solve this subnetting problem? Enter nothing but an integer number in each field to answer this question. Each is worth 2 points.

Solution

Answer:

If we need only 1 to 16 hosts , we can subnet the network as 2^4 = 16 subnets

therefore subnet mask = 255.255.255.240