6. You still are using the default mask for your IP network 192.168.1.0. You need to subnet your network so that you have 5 additional networks, and 60 hosts per network. Is this possible, and what subnet mask should you use? No, it is not possible. 7. You have sub-netted your class C network 192.168.1.0 with a subnet mask of 255.255.255.240.