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100BASE-T is an enhanced form of Ethernet 10BASE-T and a network standard used for fast data transfer rates up to 100 Mbps. 100BASE-T is 10 times faster than standard Ethernet and, like standard Ethernet, it follows the Carrier Sense Multiple Access/Collision Detection (CSMA/CD) technique to avoid collision.
100BASE-T is an official IEEE 802.3u standard that is used to connect nodes when establishing a local area network. In 1998, 100BASE-T's signal speed was superseded by Gigabit Ethernet.
100BASE-T is officially known as fast Ethernet.
Smart network administrators always use multi-adapter network switches and hubs that simultaneously support 10BASE-T and 100BASE-T. 100BASE-T is used primarily with star topology because it requires a centralized hub, which is used for port communication.
100BASE-T has three major standard versions in copper and fiber mediums: