You have been employed as a network engineer in a company, Cyber Grid Africa. Cyber Grid Africa has two offices located in two separate countries. The first office, which is in Ghana has two units, Technology and Marketing. The second office, which is in South Africa also has 2 units Retail and Finance. You have been given the IP block 198.12. 12.0/24 and tasked to design a network that will connect these offices together and ensure the following allocation of hosts; Technology =120 hosts, Marketing =10 hosts, Retail =60 hosts, Finance =25 hosts. Determine the network, broadcast, subnet masks and usable range addresses of all subnets