Which type of signal maintains the quality of that signal or recording?
digtal
dgital
digitl
digital
Which technology turns recorded waves into numbers that can be stored in a device?
analog
digital
radio
gamma
Which of the following is NOT a benefit of using digital signals?
they can be transmitted over long distances
recordings maintain their original form
more reliable recordings
they can be stored for future recovery
Does this image represent an analog signal or a digital signal?
anlog
analg
analog
anaolg
Digital signals have a finite range of values.
False
True
In which type of technology does the recording of a wave get used in its original form?
gamma
radio
digital
analog
The use of fiber-optics to transmit digital signals has created advances in all of these EXCEPT
military & space applications
computer networking
medicine & surgery
clothing manufacturing
Which type of digital signal has been used to advance science & scientific investigations?
digital transmission of space probes
digital probes for lab use
faster, worldwide communication
all of these have advanced science
Digital technology has created huge advancements in science.
False
True
Which of the following is NOT true about digital signals?
They use binary values for data.
They are easier and more reliable to transmit.
They are replicas of sound waves.
They have a faster rate of transmission.
Which of the following technologies does NOT use wireless digital signals?
AM radio
Bluetooth
WiFi connectivity
3G, 4G, LTE
Which type of transmission cable uses light instead of electricity to quickly transmit signals?
metallic wire
copper wire
modems
fiber-optics
Analog signals are able to carry more information than digital signals.
True
False
What does the finite range of a digital signal lie between?
10 to 100
a to b
0 to 1
0 to 100
Why are analog signals prone to distortion & decreased transmission quality?
Noise can interrupt the signals.
Each phase cannot store enough information.
The frequency of waves changes quickly.
The amplitude of a wave is too high.