N10-005 Question #683: Real Exam Question with Answer & Explanation

The correct answer is D: Straight-though. In a standard straight-through Ethernet cable (used to connect different device types, e.g., a PC to a switch), pins 1 and 2 are the transmit pair (Tx+/Tx-) on the workstation/PC end, and pins 3 and 6 are the receive pair (Rx+/Rx-). A crossover cable swaps these pairs so that the

Question

Which of the following cable types use pins 1 and 2 to transmit and 3 and 6 to receive?

Options

ACoaxial
BCrossover
CMultimode fiber
DStraight-though

Explanation

In a standard straight-through Ethernet cable (used to connect different device types, e.g., a PC to a switch), pins 1 and 2 are the transmit pair (Tx+/Tx-) on the workstation/PC end, and pins 3 and 6 are the receive pair (Rx+/Rx-). A crossover cable swaps these pairs so that the transmit of one end connects to the receive of the other (used to connect like devices). Coaxial cables use a single center conductor and shield, and multimode fiber uses light - neither use RJ-45 pin assignments.

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