. □B. 100BaseT uses twisted-pair that runs at 100 Mbps. CAT 5 is twisted-pair cabling type that

Step 1: Understand the given information that 100BaseT uses twisted-pair cabling type that runs

. □B. 100BaseT uses twisted-pair that runs at 100 Mbps. CAT...

. $\square$ B. 100BaseT uses twisted-pair that runs at $100 \mathrm{Mbps}$. CAT 5 is twisted-pair cabling type that runs at $100 \mathrm{Mbps}$. ख A is incorrect because CAT 3 runs at $10 \mathrm{Mbps.} \mathrm{C}$ is incorrect because thinnet runs at $10 \mathrm{Mbps}$ and is known as 10Base2. D is incorrect. Although fiber optic can run at $100 \mathrm{Mbps}$, it is not used in 100BaseT.

. $\square$ B. 100BaseT uses twisted-pair that runs at $100 \mathrm{Mbps}$. CAT 5 is twisted-pair cabling type that runs at $100 \mathrm{Mbps}$.
ख A is incorrect because CAT 3 runs at $10 \mathrm{Mbps.} \mathrm{C}$ is incorrect because thinnet runs at $10 \mathrm{Mbps}$ and is known as 10Base2. D is incorrect. Although fiber optic can run at $100 \mathrm{Mbps}$, it is not used in 100BaseT.

Key Concepts

Coaxial Cabling

Coaxial cabling, characterized by a central conductor surrounded by an insulating layer and a metallic shield, was historically used in early Ethernet implementations. Examples such as 10Base2 (thinnet) demonstrate how coaxial cables supported network connectivity at lower speeds, highlighting the evolution and diversification of networking media over time.

Cable Categories

Cable categories, such as CAT 3 or CAT 5, classify twisted-pair cables based on their performance specifications including bandwidth and data rate capabilities. Higher category cables like CAT 5 are designed to support higher speeds such as 100 Mbps or more, whereas lower category cables like CAT 3 are limited to lower speeds, thereby influencing network design choices.

Fiber Optic Cabling

Fiber optic cabling uses light to transmit data through thin strands of glass or plastic, offering high bandwidth and long-distance communication capabilities. Although not always practical or cost-effective for certain Ethernet configurations like those specifically designed for twisted-pair cabling, fiber optics are essential for high-performance applications and backbone networks.

Ethernet Standards

Ethernet standards define the protocols and physical layer specifications for data transmission in a local area network. These standards determine the data rates, connectivity methods, and media types used to ensure interoperability between devices. They include various designations that indicate both speed and cabling requirements, facilitating the network's operational and performance characteristics.

Twisted-Pair Cabling

Twisted-pair cabling consists of pairs of insulated copper wires twisted together to reduce electromagnetic interference. This type of cabling is widely used in networking environments due to its cost efficiency and ease of installation, and it serves as the medium for many Ethernet standards, providing reliable data transmission at different speeds.

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