Assume a host computer has the following configuration: IP Address: 145.20.110.176 Subnet Mask: 255.255.0.0 Default Gateway: 145.20.1.1 a. What is the Class of this network? b. Has this network been sub-netted? How do you know? c. How many IP addresses would there be on the above network (show your work)? d. How would this IP address be expressed using CIDR notation (show your work)? e. What is the range of the block of addresses this Host belongs to using CIDR notation? f. Give the network address and the broadcast address of the network this Host belongs to.