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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Q. ________ is the process of converting digital data to a digital signal.

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Q. _______ provides redundancy to ensure synchronization and inherent error detection.

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Q. ________ is normally referred to as mB/nB coding; it replaces each m-bit group with an n-bit group.

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Q. ________ provides synchronization without increasing the number of bits.

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Q. Two common scrambling techniques are ________.

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Q. The most common technique to change an analog signal to digital data is called __________.

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Q. The first step in PCM is ________.

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Q. There are three sampling methods: __________.

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Q. ______ finds the value of the signal amplitude for each sample; ____ finds the change from the previous sample.

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