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

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Q. The _____ of a composite signal is the difference between the highest and the lowest frequencies contained in that signal.

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Q. A(n)_________ signal is a composite analog signal with an infinite bandwidth.

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Q. Baseband transmission of a digital signal is possible only if we have a ____ channel.

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Q. If the available channel is a ____ channel, we cannot send a digital signal directly to the channel.

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Q. For a ______ channel, the Nyquist bit rate formula defines the theoretical maximum bit rate.

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Q. For a ______ channel, we need to use the Shannon capacity to find the maximum bit rate.

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Q. _________ can impair a signal.

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Q. The _________ product defines the number of bits that can fill the link.

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Q. The portion of physical layer that interfaces with the media access control sublayer is called

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Q. physical layer provides

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Q. In asynchronous serial communication the physical layer provides

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Q. The physical layer is responsible for

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Q. A single channel is shared by multiple signals by

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Q. Baud means?

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Q. Which of the following devices takes data sent from one network device and forwards it to all devices on the network regardless of the intended recipient?

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Q. Which of the following devices takes data sent from one network device and forwards it to the destination node based on MAC address?

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Q. which of the following devices is used to connect different network segments and manage the traffic between them?

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Q. Unipolar, bipolar, and polar encoding are types of _______ encoding.

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Q. _______ encoding has a transition at the middle of each bit.

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