1. Please write a summary address with minimum subnet which indicates to these four subnets. (15P) 192.168.4.0/24 192.168.5.0/24 192.168.6.0/24 192.168.7.0/24 Router A 2. You are designing a subnet mask for the 176.24.0.0 network. You want 100 subnets with up to 300 hosts on each subnet. What subnet mask should you use? (20P) 3. What are the network address, first valid host address, last valid host address and broadcast address of the subnet that 196.102.35.188/23 belongs to? (15P)