Which device carries data over copper wiring?

Which device carries data over copper wiring?

• A. LAN
• B. PAN
• C. VLAN
• D. NIC

Answer: (D)

Understanding which device interfaces with copper networking cabling is the key idea here. The network interface card is the hardware that directly connects a host to the physical medium, allowing data to be transmitted and received over copper Ethernet cables. It handles converting network frames into electrical signals and vice versa, following Ethernet standards over copper media like CAT5e or CAT6. Without a NIC, a device has no way to place signals onto or read signals from the copper wire. The other terms describe types or segments of networks (a local area network, a personal area network, or a virtual LAN) rather than the hardware that carries data over the copper medium.

Understanding which device interfaces with copper networking cabling is the key idea here. The network interface card is the hardware that directly connects a host to the physical medium, allowing data to be transmitted and received over copper Ethernet cables. It handles converting network frames into electrical signals and vice versa, following Ethernet standards over copper media like CAT5e or CAT6. Without a NIC, a device has no way to place signals onto or read signals from the copper wire. The other terms describe types or segments of networks (a local area network, a personal area network, or a virtual LAN) rather than the hardware that carries data over the copper medium.