Exercise 1: : You have been allocated a Class A address of 60.0.0.0. Now you need to create 5 subnets with each subnet supporting 150 hosts. For the following subnet masks give network number and host address ranges.

Subnet Mask	Network Number	Host Address Range
255.255.0.0 /16
255.255.255.0 /24

Exercise 2: As the network administrator for a growing ISP, you want to make efficient use of your network addresses. One of the network addresses IANA assigned to you is a Class B network of 135.1.0.0. You have decided to use the addresses in this Class B network to satisfy the IP address requirements of 4 corporate customers who need between 200 addresses each. Calculate a subnet mask that meets their needs. List the subnet mask and the first four subnetwork addresses the mask will create.

Subnet Mask	Network Number	Host Address Range
255.255.0.0