You are tasked to check the network configuration of a new company and answer some related questions. This company has four switches and four routers connected as shown in the topology (please click the "Show Topology" button to view the topology). Because of security reasons, the trace commands are disabled on all devices. Note: You are not allowed to configure anything by company policy. The network is operating correctly so just use various "show" commands to learn how this network works. Note: Please click the "SW", "RT" and "H" buttons at the right-hand side to access the CLIs of the switches, routers and hosts.