The network administrator has set up the network topology for the SDC company.

The details of the topology of the network are as follows:

• Admin:has 3PCs, 3VoIP phones, 1 network printer and 1 server connected to 1 switch*
• Programmer: has 40 Laptops, 40 VoIP phones, 8 network printers and 5 servers connected to 4 switches*
• Tester: has 20 Laptops, 20 VoIP phones, 2 Network printers and 5Servers connected 2 switches*
• Visitor:can accommodate up to 9 smart devices connected to 2 access points*
• 
  
  • Support:has 2 PCs and 1 VoIP phones connected to1 switch*.
  • WAN: routersR-1and R-2are connected using serial ports.

• * Switches and access point(s) should be accessible remotely (an IP address should be assigned for the switch/access point).

  A.  Determine the number of hosts for each of the six networks? (7 marks)

  B.  Show the steps you followed to obtain the number of hosts

  C.  Determine the number of prefix for each network (7 marks)

  Show the steps you followed to obtain the prefix of the first LAN (Admin) or any other LAN.

   Subnet the address block 140.20.30.0/24 as appropriate to provide an efficient use of the addresses but at the

            same time providing sufficient addresses for all groups and links.

Network name	Network/subnet  address	Address Range	Broadcast address	Prefix / mask
.