To connect two switches or two hubs, what cable is used?

To connect two switches or two hubs, what cable is used?

• A. Crossover cable
• B. Straight-through cable
• C. Fiber optic
• D. Coaxial

Answer: (A)

When two devices of the same type need to be connected, a crossover cable is used because it crosses the transmit and receive pairs so each device’s transmitter connects to the other’s receiver. This lets two switches (or two hubs) communicate directly without an intermediary device. If you were linking different device types, like a PC to a switch, you’d use a straight-through cable. Many modern devices can auto-sense and adjust, so either cable might work on some ports, but the classic rule is crossing for same-type devices. Fiber or coax aren’t the standard copper Ethernet solution for this direct switch-to-switch connection unless using specific transceivers or older technologies.

When two devices of the same type need to be connected, a crossover cable is used because it crosses the transmit and receive pairs so each device’s transmitter connects to the other’s receiver. This lets two switches (or two hubs) communicate directly without an intermediary device. If you were linking different device types, like a PC to a switch, you’d use a straight-through cable. Many modern devices can auto-sense and adjust, so either cable might work on some ports, but the classic rule is crossing for same-type devices. Fiber or coax aren’t the standard copper Ethernet solution for this direct switch-to-switch connection unless using specific transceivers or older technologies.