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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Q. _______ encoding has a transition at the beginning of each 0 bit.

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Q. PCM is an example of _______ conversion.

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Q. If the frequency spectrum of a signal has a bandwidth of 500 Hz with the highest frequency at 600 Hz, what should be the sampling rate, according to the Nyquist theorem?

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Q. The Nyquist theorem specifies the minimum sampling rate to be_______.

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Q. Which of the following encoding methods does not provide for synchronization?

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Q. Which encoding method uses alternating positive and negative values for 1s?

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Q. Which quantization level results in a more faithful reproduction of the signal?

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Q. Block coding can help in _______ at the receiver.

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Q. In _______ transmission, a start bit and a stop bit frame a character byte.

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Q. In asynchronous transmission, the gap time between bytes is _______.

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Q. ___________ conversion involves three techniques: line coding, block coding, and scrambling.

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