Which cable is described as four twisted pair cables with eight wires inside, commonly used in LANs?

Which cable is described as four twisted pair cables with eight wires inside, commonly used in LANs?

• A. Ethernet cable
• B. Coaxial cable
• C. Fiber optic cable
• D. Telephone twisted pair

Answer: (A)

Copper twisted-pair cabling for LANs uses four twisted pairs, giving eight conductors inside a single cable. This is exactly what Ethernet cables (like Cat5e/Cat6) are designed for, pairing with RJ-45 jacks to support modern local networks at various speeds. The twisting of each pair helps reduce interference, and having all four pairs enables higher-speed Ethernet standards that use multiple pairs. Coaxial cable is an older LAN medium and doesn’t consist of four twisted pairs of wires. Fiber optic cable carries light through glass or plastic fibers, not copper wires. Telephone twisted pair typically involves two conductors per pair and isn’t the standard for LAN Ethernet. So the description points to Ethernet cable.

Copper twisted-pair cabling for LANs uses four twisted pairs, giving eight conductors inside a single cable. This is exactly what Ethernet cables (like Cat5e/Cat6) are designed for, pairing with RJ-45 jacks to support modern local networks at various speeds. The twisting of each pair helps reduce interference, and having all four pairs enables higher-speed Ethernet standards that use multiple pairs.

Coaxial cable is an older LAN medium and doesn’t consist of four twisted pairs of wires. Fiber optic cable carries light through glass or plastic fibers, not copper wires. Telephone twisted pair typically involves two conductors per pair and isn’t the standard for LAN Ethernet.

So the description points to Ethernet cable.