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
Correct Answer:
Verified
Correct Answer:
Verified
Q7: Undetected and uncorrected errors can degrade performance
Q7: The data,plus preamble,postamble and control information are
Q8: Except for digital cellular telephones,copper wire is
Q9: Each signal change or element is called
Q10: In order to compensate for synchronization problems,another
Q12: An encoding scheme is used:<br>A)in digital transmission
Q13: Analog encoding of digital information modulates a
Q14: An error-detecting scheme that employs a unique
Q15: _ are electric or electromagnetic representations of
Q16: An _ is a continuously varying electromagnetic