Error detection requires that extra bits be introduced into the data stream.
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Q11: It is difficult to use low frequencies
Q12: Synchronous serial transmissions are frame based,require the
Q13: Analog signals are less susceptible to noise
Q14: For sizable blocks of data,asynchronous transmission is
Q15: One of the main differences between amplifiers
Q17: Except for digital cellular telephones,copper wire is
Q18: Digital signals are:
A)continuous
B)discrete
C)discontinuous
D)none of the above
Q19: When no character is being transmitted,the line
Q20: An encoding scheme is used:
A)in digital transmission
Q21: Converting digital data to analog signals involves
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