Q. The _____ layer is the layer closest to the transmission medium.

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Q. Consider the below figure. What are the bits transmitted for the Unipolar system?

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Q. Bit Rate is the number of bits sent in

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Q. In ______, the change or lack of change in the level of the voltage determines the value of the bit.

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Q. Data to be transmitted must be transformed into

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Q. SNR stands for

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Q. In decoding a digital signal, the receiver calculates a running average of the received signal power, called the _______.

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Q. Data can be ________.

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Q. In baseband transmission, the required bit rate is proportional to the

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Q. The data rate depends upon

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Q. A _________ sine wave is not useful in data communications; we need to send a _______ signal.

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Q. What is the difference between a switch and a hub?

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Q. One Picoseconds (PS) is equivalent to

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Q. When there is heavy traffic on the network, the queuing time is

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Q. Period is the inverse of

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Q. Digital data refers to the information that is

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Q. Given two sine waves A and B, if the frequency of A is twice that of B, then the period of B is ________ that of A.

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Q. What is the name of the device that connects two computers by means of a telephone line?

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Q. The level of the signal is inversely proportional to the

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Q. The minimum bandwidth of Manchester and differential Manchester is ____ that of NRZ.

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