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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.
10BASE5 (also known as thick ethernet or thicknet) was the original commercially available variant of Ethernet.s is the case with most other high-speed buses, segments must be terminated with a resistor at each end. For coaxial-cable-based Ethernet, each end of the cable has a 50 ohm (Ï) resistor attached. Typically this resistor is built into a male N connector and attached to the end of the cable just past the last device.