To determine if you remember some of the key concepts of the chapter, take the following self quiz and see how you do. Select the best answer. If you select an incorrect answer, you'll receive immediate informational feedback to assist you in remembering the correct answer.

1		AM is the abbreviation for amplitude modification in radio broadcasting.
			A)	True
			B)	False
2		A satellite signal's geographic coverage area on earth is referred to as the satellite's footprint.
			A)	True
			B)	False
3		With reference to a radio carrier wave, frequency is the space on the radio band occupied by the radio carrier wave frequency and the audio that has been superimposed upon it.
			A)	True
			B)	False
4		The phenomenon that occurs as the long wavelengths of AM signals interact with the radically shifting layers of the ionosphere several miles above the earth's surface at night, causing AM signals to travel great distances, is called groundwave propagation.
			A)	True
			B)	False
5		FM is the abbreviation for frequency modulation in radio broadcasting.
			A)	True
			B)	False
6		An HD Radio signal
			A)	can be created with any existing AM or FM radio transmitter.
			B)	can only be received on an HD Radio receiver.
			C)	can not go as far as an analog radio signal.
			D)	uses an AM or FM radio station's existing FCC-assigned frequency to transmit the HD Radio signal.
7		AM radio stations are closely spaced together on the band, and FM radio stations
			A)	are spaced more closely together to provide the wider bandwidth necessary for FM.
			B)	are spaced much farther apart with 200 kHz separating each station from the next.
			C)	are spaced every 20 kHz across the band.
			D)	None of the above is correct.
8		In 1987, work began at the Fraunhofer Institute in Germany to develop
			A)	HD Radio.
			B)	stereo FM radio.
			C)	the MP3 file format for compressing audio.
			D)	surround sound.
9		The AM radio band is specified by the FCC as
			A)	88 mHz to 108 mHz.
			B)	535 kHz to 1605 kHz.
			C)	being between television channels 6 and 7 in the radio frequency spectrum.
			D)	540 kHz to 1600 mHz.
10		While you can attach an mp3 audio file to an e-mail it may not work well because
			A)	you cannot include any text in the body of the e-mail.
			B)	you need at least a cable modem to transmit the file successfully.
			C)	the perceptual audio coding could shift during transmission.
			D)	the receiver's e-mail box might be full.
11		A one minute, CD-quality, stereo-audio file occupies how many megabytes of hard-drive space?
			A)	10 megabytes
			B)	12 megabytes.
			C)	1.544 megabytes
			D)	100 megabytes
12		File transfer protocol software
			A)	is often offered free of charge.
			B)	requires the use of an FTP server and client computer.
			C)	permits the easy transfer of large files over the Internet.
			D)	All the above are correct.
13		Which connection below would provide the fastest Internet connection speed?
			A)	DSL line
			B)	cable modem
			C)	T-1 line
			D)	dedicated dial-up line
14		To compress an audio file for transmission on the Internet, the MP3 format uses
			A)	perceptual audio coding based on how humans hear sounds.
			B)	a data compression protocol developed as a part of the Motion Picture Expert Group.
			C)	a 12 to 1 compression ratio.
			D)	All the above are correct.
15		Which one of the following is not a competitive advantage of digital satellite radio over analog AM and FM broadcasting?
			A)	The services offer 100 channels of music.
			B)	Receivers are available for home or car.
			C)	The services offer digital-quality audio.
			D)	The monthly service fee is only $9.95.