Yes they can. Protocols are used by computers to communicate with each other within a network. Depending on what type on network you are working within, the selection of the right protocol is important. PING lets the administrator know if the computer can communicate within the network by sending a signal to another workstation on the network to see if the line of communication is open. If the path is known then it is possible to avoid bottleneck that occur within the network.
Ethernet is the main Transport Protocol used today.
It provides a quick way to distribute information to a network so that it can be viewed by all on the network. Give concrete examples. Networks allow businesses to save money by sharing resources. Printers are an example. Another advantage is software costs are cut down because when installed on the server, every workstation can access this software and run it directly of the server.