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

View solution

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

View solution

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

View solution

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

View solution

Q. The local loop has a bandwidth of

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. The average signal rate of 2BlQ is

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. Data encoding is not possible if

View solution

Q. The Nyquist sampling rate is

View solution

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

View solution