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Networking Multiple Choice Questions and Answers

76. Demodulation is the process of _________
(A)sending a file from one computer to another computer.
(B)converting digital signals to analog signals.
(C)converting analog signals to digital signals.
(D)echoing every character that is received.

77. Many low -speed channels are interwoven into one high- speed transmission by a __________
(A)time division multiplexer.
(B)frequency division multiplexer.
(C)code division multiplexer.
(D)repeaters.

78. Bulletin board system ____________
(A)is a public access message system.
(B)converts digital signals to analog signals.
(C)is a modem capable of accepting commands.
(D)converts analog signals to digital signals.

79. To connect a computer with a device in the same room user will likely to use ___________
(A)coaxial cable.
(B)ground station.
(C)dedicated line.
(D)fibre optic cable.

80. The slowest transmission speeds are those of ________
(A)twisted pair.
(B)coaxial cable.
(C)microwaves.
(D)fibre optic cables.