A single channel is shared by multiple signals by ____________(a) analog modulation(b) digital modulation(c) multiplexing(d) phase modulationThis question was posed to me during an online interview.The origin of the question is Physical Layer topic in chapter OSI Model of Computer Network

A single channel is shared by multiple signals by ____________(a) anal

1.	A single channel is shared by multiple signals by ____________(a) analog modulation(b) digital modulation(c) multiplexing(d) phase modulationThis question was posed to me during an online interview.The origin of the question is Physical Layer topic in chapter OSI Model of Computer Network
Answer» Correct answer is (c) multiplexing The best I can explain: In communication and COMPUTER networks, the main goal is to share a scarce RESOURCE. This is DONE by multiplexing, where multiple analog or digital signals are combined into one signal over a shared medium. The multiple KINDS of signals are designated by the transport layer which is the layer present on a higher level than the physical layer.

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A single channel is shared by multiple signals by ____________(a) analog modulation(b) digital modulation(c) multiplexing(d) phase modulationThis question was posed to me during an online interview.The origin of the question is Physical Layer topic in chapter OSI Model of Computer Network

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