(Use this information to answer following 2 questions). Given IP address of 172.16.163.128 255.255.248.0, answer following two questions. Question 4 (10 points) Note: Answer using dot-decimal notation. For given IP address, the network address is A with a subnetmask of 255.255.248.0. And the broadcast address is A with a subnetmask of 255.255.248.0. Question 5 ( 5 points) Note: Answer it using dot-decimal notation. In above network, it requires at least 6 subnets. With the classful subnetting, the subnetmask of each subnet will be A