What is Crossover cable used for?

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A crossover cable is specifically designed to connect two devices of the same type directly, such as two computers or two switches, without the need for an intermediary device like a hub or a switch. This is achieved by rearranging the wiring so that the transmitting and receiving signals are properly aligned between similar devices. For example, when connecting two computers directly using a crossover cable, the Send pin on one computer connects to the Receive pin on the other and vice versa, enabling them to communicate directly.

The other options, such as connecting multiple switches or facilitating WAN connections, typically require different types of cables, like straight-through cables for connecting devices to switches or routers for broader network structures. Connecting routers to the internet usually involves a standard Ethernet or straight-through cable connected to a modem or internet service provider, rather than a crossover cable.

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