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Digital Signals Test Review
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Which signal is made up of infinite possible values?
Analog Signals
Which signal loses accuracy over long distances?
Analog Signals
Human voice is an example of
Analog Signals
Which signal is smooth and continuous?
Analog Signals
Which signal is NOT continuous?
Digital Signals
Which signal can only take on the values of 0 or 1?
Digital Signals
Which value represents a digital signal being on?
1
Which value represents a digital signal being off?
0
What is the name of the code that uses 0's and 1's to transmit information?
Binary Code
Which signal can travel long distances without losing its quality?
Digital Signals
Which signal is used in computers and cell phones?
Digital Signals
Which signal is shown on this graph?
Digital Signals
Which signal is shown on this graph?
Analog Signals
Which signal is best for storing large amounts of data?
Digital Signals
Which signal is more susceptible to background noise/interference?
Analog Signals
Which signal is more reliable?
Digital Signals
Which signals are more secure and useful for confidential information?
Digital Signals
Which signal can easily correct noise or distortion?
Digital Signals
Which signal has waves with a step-like appearance?
Digital Signals
All waves transfer what?
Energy
The person receiving this message needs to be able to ______ the message
decode or read
What transmits information?
Waves
What makes nearly every form of communication possible?
Waves
True or False: Noise does not have as large an effect on digital signals because they have defined levels.
True
Combinations of short (dot) and long (dash) wave pulses that represent letters and numbers
Morse Code
Samuel Morse developed which telecommunication system?
Morse Code
True or False: This image could be described as pixelated.
True
Which signal is this image an example of?
Analog Signal
What type of signal is this an example of
digital
What type of signal is this an example of
analog
What type of signal is this an example of
digital
What type of signal is this an example of
analog
What type of signal is this an example of
digital
What type of signal is this an example of
analog
What type of signal is this an example of
digital
What type of signal is this an example of
analog
What type of signal is this an example of
analog


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