9. If you have a class B network and want to divide it into subnets, each with 126 hosts, which subnet mask should you use? How many networks will be...

9. If you have a class B network and want to divide it into subnets, each with 126 hosts, which subnet mask should you use? How many networks will be available? What are the four addresses (broadcast and network number) for the network starting at 131.204.18? The subnet mask is 255.255.255.128 or FFFFFF80 or /25 (all equivalent). There will be 512 networks available. Networks: 131.204.18.0, 131.204.18.128 Broadcast: 131.204.18.127, 131.204.18.255 10. Suppose you have 300 hosts and want to have no more than 50 hosts per subnet. What size of address block should you request from your ISP? How many class Cequivalent addresses would you need? How many subnets would you have left over from your allocation?