Q. What are used to reduce or stop synchronization problems while receiving?

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Q. In a four channel system, all four signals transmitted contain information.

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Q. Which of the following is not an advantage of time division multiplexing?

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Q. Which of the following type of multiplexing uses pulse code modulation?

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Q. Which of the following statements is true with respect to PCM?

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Q. Which of the following is false with respect to PCM?

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Q. A special PCM system uses 16 channels of data, one whose purpose is identification (ID) and synchronization. Find the number of available data channels.

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Q. A special PCM system uses 16 channels of data, one whose purpose is an identification (ID) and synchronization. The word length is 6 bits. Find the number of bits per frame.

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Q. A special PCM system uses 16 channels of data, one whose purpose is an identification (ID) and synchronization. The sampling rate is 3.5 kHz. The word length is 6 bits. Find the serial data rate.

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Q. All local and long-distance connections are digital.

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Q. In a TDD one channel is sufficient for transmission.

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Q. Which of the following bit has an error if odd parity is used?

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