Final answer:
To connect computer networks in the U.S. to those in Japan, a global company would use a WAN, which is a network designed to cover large geographic areas and connect smaller networks.
Step-by-step explanation:
If a global company wanted their computer networks in the U.S. to be connected to their computer networks in Japan, they would need to use a WAN (Wide Area Network).
A WAN is a telecommunications network that extends over a large geographic area for the primary purpose of computer networking. Wide Area Networks are often established with leased telecommunication circuits. This type of network is used to connect different smaller networks, such as local area networks (LANs) or metro area networks (MANs), which may be located on different continents or across the globe.
Other types of networks, such as Personal Area Networks (PAN), Local Area Networks (LAN), and Campus Area Networks (CAN), do not provide the necessary scale or scope for global interconnectivity that a WAN does. A PAN is typically used for a singular person or device area, a LAN is used within a localized area like a building or campus, while a CAN might encompass multiple buildings in a local proximity like a university campus or corporate facility.