41
A(n)_________ signal is a composite analog signal with an infinite bandwidth.
Answer: digital
Questions
42
_____ signals can have an infinite number of values in a range.
Answer: Analog
43
What is the bandwidth of a signal that ranges from 1 MHz to 4 MHz?
Answer: 3 MHz
44
For a ______ channel, we need to use the Shannon capacity to find the maximum bit rate.
Answer: noisy
48
________ is a type of transmission impairment in which the signal loses strength due to the different propagation speeds of each frequency that makes up the signal.
Answer: Distortion
50
Before data can be transmitted, they must be transformed to ________.
Answer: electromagnetic signals
52
The _________ product defines the number of bits that can fill the link.
Answer: bandwidth-delay
53
A _________ sine wave is not useful in data communications; we need to send a _______ signal.
Answer: single-frequency; composite
54
When propagation speed is multiplied by propagation time, we get the ________.
Answer: distance a signal or bit has traveled
57
In a time-domain plot, the horizontal axis is a measure of ________.
Answer: time
58
If the bandwidth of a signal is 5 KHz and the lowest frequency is 52 KHz, what is the highest frequency?
Answer: 57 KHz
59
A sine wave in the ______ domain can be represented by one single spike in the _____ domain.
Answer: time; frequency
60
________ is a type of transmission impairment in which the signal loses strength due to the resistance of the transmission medium.
Answer: Attenuation
