Computer Networking
Avalanche photodiode receivers can detect hits of transmitted data by receiving

None of these
400 photons
300 photons
200 photons
100 photons

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Computer Networking
RS-449/442-A/423-A is

a check bit appended to an array of binary digits to make the sum of the all the binary digits
None of these
the ratio of the number of data units in error to the total number of data units
a set of physical layer standards developed by EIA and intended to replace RS-232-
a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression the resulting expression will not conform to the rules of construction and

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