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IT 300 HW 3 QUESTIONS AND ANSWERS WITH VERIFIED SOLUTIONS 2024
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IT 300 HW 3 QUESTIONS AND ANSWERSWITH VERIFIED SOLUTIONS 2024
When frequency division multiplexing (FDM) is used, guard channels are NOT required in-between
frequency channels.
t/f - ANSWER false
Time division multiplexing (TDM) and frequency division multiplexing (FDM) can be used in tandem
together.
t/f - ANSWER true
Which multiplexing method(s) can be used to aggregate digital data?
A. frequency division multiplexing (FDM)
B. time division multiplexing (TDM)
C. either FDM or TDM
D. neither FDM or TDM - ANSWER C. either FDM or TDM
select the correct statement regarding error control.
a. error detection is used to detect data errors, but not to correct them
b. error correction is used to correct data errors
c. error control methods only give us a probability that bit errors can be either detected and/or
corrected
, d. all statements are correct - ANSWER D. all statements are correct
what does BER of 10^-5 mean?
Answers:
a. there will be no errors during transmission since the BER is so low
b. does not mean anything unless associated with a transmission data rate (bit rate)
c. there is a probability of one error for every 100,000 bits transmitted
d. None of the above - ANSWER c. there is a probability of one error for every 100,000 bits transmitted
a _________ data compression technique results in none of the original data being lost.
a. lossy
b.lossless
c.analog
d.PCM - ANSWER lossless
you digitize an analog signal that has frequency bandwidth of 20kHz, using bit depth of 16. what data
range must be supported?
a. 640 kbps
b. 64 kbps
c. 32 kbps
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