Network address: 200.12.30.0
Network mask: 255.255.255.0
Use the information above. You need to create 12 subnetworks supporting 10 host addresses each. Which extended prefix will meet this requirement?
A network administrator is creating a subnet plan for the address 172.16.0.0/16. The network must support 459 hosts on each subnet while providing the maximum number of subnets. What subnet mask should be used?