Multiple Choice
One of the main differences between amplifiers and repeaters is that
A) amplifiers forward noise as well as data.
B) amplifiers clean the signal and then forward it.
C) amplifiers increase the amount of attenuation.
D) amplifiers focus primarily on digital signals.
E) amplifiers focus primarily on analog signals.
Correct Answer:

Verified
Correct Answer:
Verified
Q8: Except for digital cellular telephones,copper wire is
Q13: In Non Return to Zero encoding schemes,the
Q14: An error detecting scheme that employs a
Q15: The efficiency of an asynchronous transmission using
Q18: For amplitude,frequency or phase shift keying,that respective
Q19: Identify each of the following as either
Q20: A carrier wave is modulated with 4
Q21: Synchronous serial transmissions are frame based,require the
Q22: Asynchronous transmission includes a start and stop
Q41: Parity checking for error detection is most