Under FDM, a single narrowband channel is partitioned into multiple broadband subchannels.
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Q18: Communication protocols are less important for computer-to-computer
Q19: RF transmission is more complex than wired
Q20: Data messages vary in format and content
Q21: Because block size is always the same
Q22: Type I error rates can be reduced
Q24: Unlike block checking, CRC cannot produce a
Q25: Parity checking can be based on even
Q26: Asynchronous transmission uses channel capacity more efficiently
Q27: A _ message contains instructions that control
Q28: _ is a technique for embedding multiple
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