100 Mbps. There are several speeds for Ethernet; the term "Fast Ethernet" is used for the 100 Mbps variety.
10-Mbps Ethernet, 100-Mbps or Fast Ethernet, and 1000-Mbps or Gigabit Ethernet.
Ethernet is the most popular networking technology used in LANs. Fast Ethernet is used to refer to any version of Ethernet that meets or surpasses the 100 Mbps transfer speed.
An Ethernet device that is capable of 10/100 operation is capable of transferring and receiving data at either 10 Mbps or 100 Mbps. Older devices were only capable of transferring at 10 Mbps. To be backwards-compatible, devices have to be capable of transmitting data at 10 Mbps.
100 mbps
Ethernet LANs have transmission rates of 10 Mbps, 100 Mbps, 1 Gbps and 10 Gbps For an X Mbps Ethernet (where X = 10, 100, 1,000 or 10,000), a user can continuously transmit at the rate X Mbps if that user is the only person sending data. If there are more than one active user, then each user cannot continuously transmit at X Mbps.
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Ethernet supports speeds as low as 10 Mbps and as high as 1 Gbps. There are new initiatives to support 10 Gbps in the near future.
That is a NIC that is capable of running speeds of 100 Mbps up to 1 Gbps.
(From: Jean Andrews CompTIA A+ 6th Edition pg. 846) The three variations of Ethernet are primarily distinguished from one another by speed: (1) 10-Mbps Ethernet, (2) 100-Mbps or Fast Ethernet, and (3) 1000-Mbps or Gigabit Ethernet.
100 Base T
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