Crossover cables are typically used to connect which devices?

Crossover cables are typically used to connect which devices?

• A. Printer to PC
• B. PC to switch
• C. Switch to switch
• D. Router to modem

Answer: (C)

Crossover cables swap the transmit and receive pairs, which is needed when you’re connecting two devices of the same type so their TX pins line up with the other side’s RX pins. Switches are the classic case: each switch port expects to communicate with another switch, so you use a crossover to directly link two switches and get the data flowing correctly. In contrast, a printer to a PC or a PC to a switch are typically wired with a straight-through cable because they’re different device types, and modern gear often auto-corrects MDIX so you don’t have to worry about it. So linking two switches directly is the scenario that calls for a crossover cable.

Crossover cables swap the transmit and receive pairs, which is needed when you’re connecting two devices of the same type so their TX pins line up with the other side’s RX pins. Switches are the classic case: each switch port expects to communicate with another switch, so you use a crossover to directly link two switches and get the data flowing correctly. In contrast, a printer to a PC or a PC to a switch are typically wired with a straight-through cable because they’re different device types, and modern gear often auto-corrects MDIX so you don’t have to worry about it. So linking two switches directly is the scenario that calls for a crossover cable.