Question

An organization is assigned a Class-C network 200.120.80.0 and wants to form subnets for its threedepartments: D1 (60hosts), D2 (90hosts), and D3 (90hosts). Describe a possible arrangement of subnets (i.e., give the network address and the subnet mask of each subnet) to make this possible. Note that a department may be assigned multiple subnets; subnets may have different sizes and they shall not overlap.

Answer 1

D1= 60 HOSTS

network address - 200.120.80.64/26

subnet mask -255.255.255.192/26

D2 = 90 HOSTS

network address - 200.120.80.0/25

subnet mask -255.255.255.128/25

D3 = 90 HOSTS

network address - 200.120.80.128/25

subnet mask -255.255.255.128/25