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Determine about the infrared spectrum
(1) The spectrum for infrared is virtually unlimited, which shows the possibility of achieving extremely high data rates.
(2) The infrared spectrum is unregulated worldwide, which is not true of some portions of the microwave spectrum.
(3)Infrared light is diffusely reflected by light-coloured objects; therefore it is possible to use ceiling reflection to achieve coverage of a whole room.
Q. Describe Physical Layer in OSI layers model? Physical Layer : Controls the transmission of the actual data onto the network. It describes the electrical signals, line state
what is max length of cable I can use
Physical Configurations Transport signal multiplexer de multiplexer. It either signal from multiple sources into a STS singles or de multiplexes and STS signal into diffe
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Can you define the difference among trusted and untrusted networks?
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