An organization has been assigned the prefix 212.1.0.0/23 and wants to form subnets for 4 departments which have the following number of hosts:

 

Department A:       140 hosts

Department B:        124 hosts

Department C:          62 hosts

Department D:       31 hosts

a)Give a possible arrangement of subnet masks to make this possible. [4pt]

b)Suggest what the organization might do if department C grows to 65 hosts. [1pt]