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Which of this is not a constituent of residential telephone line?(a) A high-speed downstream channel(b) A medium-speed downstream channel(c) A low-speed downstream channel(d) An ultra-high speed downstream channelI have been asked this question in exam.Origin of the question is Access Networks topic in chapter Computer Networks Introduction of Computer Network |
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Answer» CORRECT OPTION is (c) A low-speed downstream channel Explanation: A low-speed downstream channel is not a CONSTITUENT of a residential telephone LINE. But it might be just a two-way telephone channel. Internet can be provided through a high-speed downstream channel in a residential telephone line. |
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