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判断题 The session layer is responsible for transmitting a bit stream over a physical medium. ( ) 对( ) 错
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判断题 The data-link layer organizes bits into logical units called frames. It is responsible only for node-to-node delivery of the frame. ( ) 对( ) 错
判断题 A WAN is the connection of individual computers or LANs over a large area. ( ) 对 ( ) 错
判断题 A MAN is the connection of individual computers or LANs over a large area. ( ) 对 ( ) 错
判断题 A repeater is a connecting devices that regenerates data and extends the physical length of a network. ( ) 对 ( ) 错
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