a) Your small company of less than 200 employees lias been assigned a class C network by its ISP. The class C network address assigned to you is 204.45.87.0. You need to divide this into three subnets for the administration group, the accounts team, and the development group. Assume the first and last subnets are usable. i) [List the network addresses for the subnets in dotted-decimal slash notation. ii) What is the broadcast addresses for these subnets? iii) Give the subnet mask. iii) How many hosts are in each subnet? b) Compare message delivery in IP to message delivery at the data-link layer. c) How are a network address and a broadcast address represented in an IP address? d) Packet delivery is unreliable in IP. What four things can happen to packets that make their delivery unreliable? What does IP do when any one of these conditions occur? e) Why are the class A addresses 10.x.y.z, the class B addresses 172.16- 31.y.z, and the class C addresses 192.168.y.z special? Will packets transmitted through the Internet ever have these as source or destination addresses