iv. The network diagram given below depicts the 1 Gb/s optical fibre WAN connectivity between two sites of SLTC Ltd. with a span of 38 km. Laptop-PT Senior Lecturer uptop-PT Bursar WAN Laptop-PT HR Manager Laptop-PT Registrar 206024TT Switcho 1941 Routeng 1941 Routers 2960-TI Switch Laptop-P7 Business Manager LAN at Paduka LAN at Trace City Printer PT Laptop-PT Student Coordinator Printer PT Server-PT File Server Figure 2: WAN connectivity between two sites of SLTC . . . . Network criteria: The LAN at Padukka Campus consists of 58 staff members. The LAN at Trace City office consists of 26 staff members. Each site has a printer. File server is hosted at Trace city premises for any staff to access the shared files. Only 172.16.1.0/24 network address given for you to allocate the subnets. a. Determine optimal subnets from the given network address for the subnets that are in the network diagram. Identify the no. of subnets and no. of hosts required. Identify the network address, the broadcast address and the valid IP range for each subnet that you have determined. Note: Use either CIDR or VLSM method. (9 marks) b. Once you configure the interfaces of the routers and the end devices with a valid IP range on each network, will you be able to reach the server hosted at Trace city office from Padukka campus premises? Justify your answer. (2 marks) c. Build each routing table relevant to Router and Routerl separately with the relevant fields. Assume that the above issue in "part b.)" is solved. (4 marks)