Data Transmission Network - Multiple Choice Questions and Answers | Page-13

61 The sampling interval of a telephone voice signal is
A 125 x 10-6 sec
B 50 x 10-6 sec
C 100 x 10-6 sec
D 25 x 10-6 sec

Answer: Option [A]
62 Communication between computer using standard telephone lines
A is most efficient
B requires a change to an analog signal
C produces little noise and few disturbances
D none of the above

Answer: Option [B]
63 Typical bandwidth of optical fibers is in the
A Order of ghz
B Order of kHz
C Order of hz
D None of the above

Answer: Option [A]
64 Sending a file from your personal computer’s primary memory or disk to another computer is called
A Logging on
B Hang on
C Uploading
D Downloading

Answer: Option [C]
65 A batch processing terminal would not include a
B Card reader
C Card punch
D Line printer

Answer: Option [A]


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