An organization owns the network 200.1.1.0/24 and wants to form subnets for 4 departments, with hosts as follows:
A 72 hosts
B 35 hosts
C 20 hosts
D 18 hosts
There are 145 hosts in all.
a. Give a possible arrangement of subnet masks to make this possible.
b. Suggest what the organization might do if department D grows to 24 hosts.