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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.
An innovative technology for FTTH implementation , Gigabit Passive Optical Network ( GPON ) provides unprecedented bandwidth ( up to 2.5 Gbps downstream rate , shared by up to 128 premises ) , and a greater distance from a central office ( 20 to 40 kilometers , as opposed to 4~5 kilometer for DSL ) , allowing service providers to enable ...