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CCNA Objective Type Questions and Answers | Page-4

Questions
16 In simplex mode of transmission
A Data communication is one way
B Data can be transmitted to small distances only
C Data format is simple
D None of the above

Answer: Option [A]
17 An example of half duplex transmission is
A Referee’s whistle
B Satellite channel
C Broadcast radio
D None of these

Answer: Option [B]
18 In half-duplex data transmission
A Data can be transmitted in one direction only
B Data can be transmitted to long distances only
C Data can be transmitted in both directions
D None of the above

Answer: Option [C]
19 The interactive transmission of data within a time sharing system may be best suited to
A Simplex lines
B Half-duplex lines
C Full-duplex lines
D Biflex-line

Answer: Option [B]
20 Full duplex operation
A Requires two pairs of cables
B Can transfer data in both directions at once
C Requires modems at both ends
D All of the above

Answer: Option [D]

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