b) Consider the network shown below. Each of the subnets A-D contains at most 30 hosts; subnet E connects routers R1 and R2. Assign network addresses to the five subnets shown above. with the following constraints: (i) All addresses must be allocated from 214.97.254.0/24; (ii) Subnet A should have enough addresses to support 60 interfaces; (iii) Subnet B should have enough addresses to support 30 interfaces; (iv) Subnet C should have enough addresses to support 30 interfaces. (v) Subnets E should each be able to support two interfaces. For each subnet, the assignment should take the form a.b.c.d/x or a.b.c.d/x - e.f.g.h/y. [10 marks] c) Suppose you purchase a wireless router from an ISP. Your ISP dynamically assigns your wireless router an (one) IP address. Suppose you have five PCs at home that wirelessly connect to your wireless router i. How are IP addresses assigned to the five PCs? ii. Does the wireless router use NAT? Why or why not? iii. Explain three benefits of NAT. [3 marks] [2 marks] [3 marks]