Computer Networks Objective Type Interview Questions with Answers
Questions
11
The loss of power a signal suffers as it travels from the transmitting computer to a receiving computer is :
Answer: Option [D]
Attenuation refers to the loss of signal strength during transmission.
12
An effective way to prevent attenuation is :
Answer: Option [A]
Attenuation can be prevented by adding amplifiers or repeaters at approximately spaced points.
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13
Baud rate is :
Answer: Option [A]
Baud rate refers to the number of signal changes per second.
14
The maximum data rate that a medium of 10 KHz and signal to noise ratio of 30dB is roughly
Answer: Option [B]
Using channel capacity formula of Shannon : we get
C = W * log2(1 + S/N)
30 dB S/N = 1000 S/N
C = 3000*log2(1 + 1000)
C = 30 Kbps
15
Which of the following medium does not use metallic conductor for transmission ?
Answer: Option [C]
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