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Data Transmission Network - Multiple Choice Questions and Answers | Page-11

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Download in pdf multiple choice questions(mcqs) & answers on Data Transmission Network. These general awareness quiz objective questions answers include mcqs on teleprocessing system, serial communication etc.
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(51) What is the minimum number of wires needed to send data over a serial communication link layer ?
[A] 1
[B] 2
[C] 3
[D] 4

Comment

Answer: Option [B]
(52) The velocity of transmission of energy in free space is given by:
[A] C=f/1
[B] C=f/2
[C] C=f
[D] None of the above

Comment

Answer: Option [A]

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(53) A teleprocessing system may consist of
[A] User systems
[B] Communication systems
[C] Computer center systems
[D] All of the above

Answer: Option [D]
(54) The ground wave eventually disappears as one moves away from the transmitted because of
[A] Interference from the sky above
[B] Loss of line of sight condition
[C] Attenuation of energy by the ground
[D] Maximum single hop distance limitation

Comment

Answer: Option [C]
(55) Microwave links are generally preferred to coaxial cable for television transmission because
[A] They are cheaper
[B] Of their greater bandwidths
[C] They have less overall phase distortion
[D] Of their relative immunity to impulse noise

Comment

Answer: Option [B]

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DATA COMMUNICATION & COMPUTER NETWORKS – MULTIPLE CHOICE QUESTIONS AND ANSWERS | 250 MCQS

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