(a) As a network engineer in a medium business organization with 500 hosts, you are required to analyse appropriateness of the address block granted by Internet Service Provider (ISP) in Figure Q2 (a) to ensure the fulfilment of the address block restriction in IPv4 classless addressing. Identify the suitable technical solution if the block of addresses granted by ISP is not suitable. (b) Figure Q2 (b) shows a part of an internet with two routers connecting three LANs. The computer with logical address A and physical address 10 needs to send a packet to the computer with logical address P and physical address 95. Analyze the contents of the packets at G, X and R. (c) As a network administrator of an organization, you are required to create 30 subnetworks with the address block 210.18.179.0/24 granted by ISP. The First addresses of the block should be reserved for the network address of the organization. Calculate the last address in subnet 28. Block 192.167.255.236 First Last 192.168.1.174 Figure Q2 (a) A/10 Sender To another | X/44 network F/20 T/99 G Upper layers Data AP Data Network layer 2010 AP Data T2 Data link layer Router 1 AP Data AP Data T2 AP Data AP Data T2 LAN 1 -X LAN 2 LAN 3 Data link layer 9566 A P Data T2 AP Data Network layer Upper layers Data AP Data T2 AP Data Router 2 33 99 A P Data T2 AP Data 2/66 N/33 R Receiver To another network | Y/55 P/95 Figure Q2 (b)