Q. A switch connects several local loops or trunks and allows a connection between different

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Q. In Discrete Multitone Technique (DMT), Channel 1-5 is used for

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Q. In Signaling System Seven (SS7), the transport layer of OSI model is equivalent to

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Q. In OOOVBOVB, V stands for violation and B stands for

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Q. A no periodic signal has changed to a periodic signal with the period equal to

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Q. The average signal rate of 2BlQ is

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Q. NRZ-L and NRZ-I both have an average signal rate of

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Q. The last step in Pulse Code Modulation (PCM) is

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Q. The relationship between data rate and signal rate depends on the value of

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Q. HDB3 substitutes four consecutive zeros with OOOV or BOOV depending on the number of nonzero pulses after

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Q. The minimum bandwidth of the digital signal is nb times greater than the bandwidth of the

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Q. In which scheme all the signal levels are on one side of the time axis?

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Q. Data encoding is not possible if

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Q. The Nyquist sampling rate is

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Q. How many communication channels are needed for serial transmission?

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Q. The block coding scheme that provides greater error detection capability than 4B/5B is

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Q. In synchronous transmission, we send bits one after the another without

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Q. The bit rate for 1000 baud, FSK, baud rate would be

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Q. A system is using NRZ-I to transfer 10-Mbps data. What would be minimum bandwidth

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Q. What is the number of bits per baud for PSK with four different phases

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