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Networking Multiple Choice Questions and Answers

111. Transmission media are usually categorized as __________
(A)fixed or unfixed.
(B)determinate or indeterminate.
(C)guided or unguided.
(D)metallic or nonmetallic.

112. ___________ cable consists of an inner copper core and a second conducting outer sheath.
(A)Twisted pair.
(B)Fiber-optic.
(C)Radio.
(D)Shielded twisted pair.

113. Which of the following is not a guided medium?
(A)Twisted - pair.
(B)Coaxial cable.
(C)Fiber-optic.
(D)Atmosphere.

114. Which of the following primarily uses guided media?
(A)Cellular telephone system.
(B)Local telephone system.
(C)Satellite Communications.
(D)Radio broadcasting.

115. The amount of uncertainty in a system of symbol is called ______
(A)bandwidth.
(B)entrophy.
(C)loss.
(D)Quantum