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Review Questons 1. The original commercial version of Ethernet supported 10 Mbps bandwidth; the version introduced in the early 1990s supports 100 Mbps; and in 1998, Gigabit Ethernet was introduced. All versions use the same data frame formats, with the same maximum PDU sizes, so they can interoperate freely.
How Fast is Ethernet? The first experimental version of Ethernet wired networking ran at a connection speed of 2.94 megabits per second (Mbps) in 1973. By the time Ethernet became an industry standard in 1982, its speed rating increased to 10 Mbps due to improvements in the technology. Ethernet kept this same rating for more than ten years.