Figure 1-3: Elements of a Network Client application Server Application Message(Frame) Access Switch Line 2 Client Server Computer Routers connect networks Computer Switch to the outside world Trunk treated just like computers Line in single networks Mobile Client witch Outside Yes, single networks can4 World contain routers uuv Router 1212 Figure 1-3: Elements of a Network Wireless Access Point Mobile Client Router Outside World Server Computer Client Computer Switch 1 Switch 2 Switch 3 Switch 4 Message (Frame) Access Line Trunk Line Client Application Server Application 7. Routers connect networks to the outside world; Treated just like computers in single networks Yes, single networks can contain routers