CCNA Implementing and Administering Cisco Networking Technologies (200-301) Practice Test

The correct answer is based on the specifics of Ethernet cabling and the roles of different devices in networking. Pins 3 and 6 are specifically associated with the transmit and receive functions in Ethernet connections, particularly in 10Base-T and 100Base-T standards.

Hubs are simple networking devices that connect multiple Ethernet devices, allowing them to communicate with one another. They utilize all available pairs of wires in a typical Ethernet cable. Because hubs were designed before switches became common, they transmit on all pairs and rely on physical layer connections, which includes pins 3 and 6.

Switches, on the other hand, are more intelligent devices that forward data at the data link layer. They also utilize pins 3 and 6 to communicate over Ethernet cables. Switches selectively forward data to the intended device based on MAC addresses, but still transmit data on these pins as part of their functionality.

Given that both hubs and switches transmit data using pins 3 and 6, this makes the selection correct, as both devices engage in Ethernet communication that uses these specific pins for transmission commands. This understanding of pin assignments and device roles is crucial for networking professionals dealing with setup and troubleshooting in a local area network (LAN).