How to construct the network and what technologies should be used in a company, explain why? The company wants to construct a network to link all the office together.
Hint: To use which network geographic scale: LAN or CAN; consider which network topologies: star topology , ring topology, bus topology; consider the TCP/IP to make sure all communications to be secured, consider the P2P network architecture; and how to reduce communication cost, especially for long distance call.