Digital and Analog Signals Quiz

What is the main difference between analog and digital data?

• Analog data is discrete; digital data is continuous

• Analog data can only have two values

• Analog data is continuous; digital data has discrete states

• Digital data is always better than analog

What must happen to data before it is transmitted?

• It must be compressed

• It must be transformed to electromagnetic signals

• It must be encrypted

• It must be printed

Which of the following is not a form of information in communication?

• Text

• Numbers

• Waves

• Audio

A protocol in communication is used to:

• Translate languages

• Define rules for communication

• Compress data

• Encrypt messages

Which signal passes through an infinite number of points?

• Digital

• Square

• Analog

• Pulse

What is a cycle in a periodic signal?

• A type of analog signal

• A non-repeating pattern

• One full pattern of a periodic signal

• A measure of bandwidth

A signal that does not repeat over time is called:

• Periodic

• Simple

• Composite

• Nonperiodic

Which type of signal can be classified as simple or composite?

• Digital

• Nonperiodic

• Periodic analog

• Binary

What is the simplest form of a periodic analog signal?

• Square wave

• Sine wave

• Pulse

• Triangle wave

Which of the following defines the height of a wave?

• Frequency

• Amplitude

• Phase

• Bit length