Computer Networks - Topic-wise CCNA Questions and Answers

(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

Comment

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

Comment

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

Comment

Answer: Option [A]

(24) Communication between a computer and a keyboard involves ______ transmission.

[A] Automatic

[B] Simplex

[C] Hard-duplex

[D] Full-duplex

Comment

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

Comment

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

Comment

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.

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

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

Chapters

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

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

Chapters