Q. The modulation technique that has become standard for Asymmetric Digital Subscriber Line (ADSL) is called the

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Q. The High-bit-rate Digital Subscriber Line (HDSL) was designed as an alternative to

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Q. Switched/56 service is the digital version of an

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Q. In Discrete Multitone Technique (DMT), Channel 0 is reserved for

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Q. The designers of ADSL have divided the available bandwidth in to

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Q. The local loop has a bandwidth of

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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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