5. Consider the address block 15.7.19.0/23. The goal is to divide the available address range into the maximum number of subnets while having enough addresses in each subnet to accommodate the indicated number of hosts. For each of the following, (i) Indicate the netmask to accomplish this and (ii) indicate how many subnets are possible a) At least 50 hosts per subnet b) At least 100 hosts per subnet Explain your response and present your results in the form of a table below. (a) At least 50 hosts per subnet (b) At least 100 hosts per subnet # of possible netmask subnets Maximum # of possible hosts