Consider Figure 2. Web server To external internet 1 Gbps Mail server 1 Gbps 6 5 1 Gbps 23 1 Gbps (fiber) 1 Gbps (fiber) 1 Gbps (fiber) 1 Gbps Cat 5 cable Electrical Engineering Computer Science Computer Engineering A. Suppose that all links are 1 Gbps. What is the maximum total aggregate throughput (total aggregate bits per second) that can be achieved among the 9 hosts and 2 servers (total 11 nodes) in this network? You can assume that any host or server can send to any other host or server. Why? (Hint: Carefully think about how switches handle the traffic.] B. Suppose that all the switches in Figure 2 are replaced by hubs. All links are 1 Gbps./