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Multiple Choice Quiz
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1
Frequencies that encompass the 300- to 3000-MHz range are under which of the following segments
A)high frequency
B)very high frequency
C)ultrahigh frequency
D)microwave
2
Wireless local-area networks occupy which of the following segments?
A)high frequency
B)very high frequency
C)UHF
D)microwave and SHF
3
Just above the infrared region is the spectrum referred to as
A)light
B)millimeter waves
C)ultraviolet
D)gamma rays
4
The difference between the upper and lower frequency limits of a signal or the equipment operation range is the
A)amplitude
B)spectrum
C)bandwidth
D)medium
5
Signals generated at frequencies above and below a carrier frequency by an amount equal to the modulating frequency are called
A)duplex signals
B)sidebands
C)analog signals
D)gamma rays
6
What agency is responsible for allocating bands of frequencies and for setting limitations on broadcast power for different types of radio and TV operations?
A)OSHA
B)IEEE
C)FCC
D)ANSI
7
Which of the following organizations does not maintain standards for communication systems?
A)IEEE
B)ANSI
C)IBEW
D)ITU
8
Which of the following is not a simplex communication system?
A)TV broadcasting
B)paging services
C)radar
D)facsimile
9
Which communication application best describes movies, sports events, and other programs that are distributed to subscribers by fiber-optic and coaxial cable?
A)telemetry
B)cable television
C)TV broadcasting
D)wide-area networks
10
Which of the following is not a duplex type communication system?
A)telephones
B)sonar
C)telemetry
D)Internet







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