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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

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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