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Communication Network Fundamentals Objective Type Questions and Answers | Page-5

Questions
21 In order to transfer message in a computer network, we use the technique called
A Circuit switching
B Message switching
C Packet switching
D None of the above

Answer: Option [C]
22 Switching systems
A require additional lines
B are not used presently
C are limited to small data networks
D none of the above

Answer: Option [A]
23 A transmission medium in which one station is transmitter and the other station is receiver, is termed as
A Simplex
B Half duplex
C Full duplex
D None of the above

Answer: Option [A]
24 Communication between a computer and a keyboard involves ______ transmission.
A Automatic
B Simplex
C Hard-duplex
D Full-duplex

Answer: Option [B]
25 In virtual circuit-switching, the path
A To be followed depends on the length of message
B Upto next intermediate node is allocated before the transmission of message begins
C Upto destination is allocated before the transmission of message begins
D None of the above

Answer: Option [C]
26 Half duplex operation requires
A High speed links
B Noiseless channels
C Modems at both ends
D None of the above

Answer: Option [D]

Half Duplex operation involves data flow in both direction, but only one direction at a time. It is a two-wire transmission with medium cost and efficiency.

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