Which Ethernet standard has a speed of 10 Mbps, uses Category 3 twisted pair, and a maximum distance of 100 meters?

Which Ethernet standard has a speed of 10 Mbps, uses Category 3 twisted pair, and a maximum distance of 100 meters?

• A. 10BASE-T
• B. 100BASE-TX
• C. 1000BASE-T
• D. 10GBASE-T

Answer: (A)

This tests understanding of Ethernet standards in terms of speed, cabling, and reach. 10BASE-T operates at 10 Mbps over twisted-pair copper and is specified for a maximum cable length of 100 meters. Historically, Category 3 cabling was used with this standard, though it can run on Cat3 or better. The other options describe faster speeds that use newer cable categories and the same 100-meter limit: 100BASE-TX is 100 Mbps over Cat5e or better, 1000BASE-T is 1 Gbps over Cat5e or better, and 10GBASE-T is 10 Gbps over Cat6a or better. So the combination described—10 Mbps, Cat3 twisted pair, 100 meters—matches 10BASE-T.

This tests understanding of Ethernet standards in terms of speed, cabling, and reach. 10BASE-T operates at 10 Mbps over twisted-pair copper and is specified for a maximum cable length of 100 meters. Historically, Category 3 cabling was used with this standard, though it can run on Cat3 or better. The other options describe faster speeds that use newer cable categories and the same 100-meter limit: 100BASE-TX is 100 Mbps over Cat5e or better, 1000BASE-T is 1 Gbps over Cat5e or better, and 10GBASE-T is 10 Gbps over Cat6a or better. So the combination described—10 Mbps, Cat3 twisted pair, 100 meters—matches 10BASE-T.