1. An organization is granted a block of addresses starting with the address 192.216.148.0/24. The organization needs to have FOUR subblocks (subnets): one subnet of 30 addresses, one subnet of 15 addresses, one subnet of 100 addresses, and one subnet of 60 addresses. Design the subnets. For each subnet, find the prefix length, the number of addresses, the first address, and the last address. 2.2 [5 marks] Solve each of the following questions and show your calculations: 2. What is the network address for 192.162.72.230/26 3. Find the first and last addresses for the block 200.107.16.17/18 4. How many addresses are available in the network in the block 200.107.16.17/18. 5. Convert the prefix length /14 to a dotted decimal notation. 6. What is the class of each of the following classful IP addresses? a. 20.81.111.85 b. 142.250.201.14