Technology Interactions © 2007

Chapter 12: Digital Multimedia

Self-Check Quiz

1.
Which type of signal is continuous and variable?
A)satellite radio
B)analog
C)HDTV
D)digital
2.
What information about a waveform does the value "1,000 hertz" provide?
A)amplitude of one-thousandth of a millimeter
B)frequency of 1,000 vibrations per second
C)wavelength of 1,000 microns
D)frequency of 1,000 bits per second
3.
An MP3 is one type of
A)digital camera.
B)digital music player.
C)digital video camcorder.
D)digital teleconferencing format.
4.
To check the resolution of a digital image, you'd want to know
A)whether it was transmitted on a VHF or a UHF channel.
B)what the bandwidth is.
C)how many pixels it contains.
D)the wavelength, frequency, and amplitude of the signal.
5.
What hardware enables a digital camera to transform light into digital electronic patterns?
A)V-chip
B)CCD chip
C)ROM chip
D)VOD chip
6.
Which description does not apply to the Internet?
A)analog-only medium
B)host to millions of Web pages
C)huge source of multimedia
D)global network of computers
7.
Whether by air or cable, TV transmission carries
A)data in MP3 format.
B)sound and light waves.
C)digital-only content.
D)video and audio signals.
8.
The input to a microphone is sound; the output is
A)video.
B)MP3 data.
C)an electrical signal.
D)multimedia.
9.
Among other differences, AM and FM radio broadcasting use different
A)types of sound waves.
B)multimedia combinations.
C)frequency bands.
D)satellite uplinks.
10.
Which example of communication could most likely be described as a multimedia presentation?
A)radio program
B)picture book
C)formal speech
D)Web page
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