Signal and Communication Quiz

Which signal is this image an example of?

• analog

• digital

Which signal is this image an example of?

• analog

• digital

Which signal is this image an example of?

• analog

• digital

True or False: This image could be described as pixelated.

• True

• False

True or False: This image could be described as pixelated.

• True

• False

Small uniform shapes that are combined to make a larger image.

Combinations of short (dot) and long (dash) wave pulses that represent letters and numbers

• Semaphore
• Braille
• Sign language
• Morse code

True or False: Noise does not have as large an effect on digital signals because they have defined levels.

• True

• False

Any unwanted change to a signal

• Signal Strength
• Data Integrity
• Frequency Shift
• Noise or interference

What makes nearly every form of communication possible?

• Body language
• Facial expressions
• Gestures
• waves