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Q. Explain Full Duplex data transmission?
- Have two separate Communication channels as well as use each one for simplex Data traffic (in different directions).
- If this is through we have two separate physical circuits each with a "forward" channel (for data) and a "reverse" channel (for acknowledgements).
- In both cases the bandwidth of the reverse channel is approximately entirely wasted and in effect the user is paying for two circuits but using only the capacity of one.
- A better idea is to utilize the same circuit for data in both directions and in this model the data frames from A to B are intermixed with the Acknowledgement frames from A to B.
- By gazing at the kind field in the header of an incoming frame the receiver can tell whether the frame is data or acknowledgement.
how does the near/far effects infulence TDMA system?what happen CDMA system? what are countermeasures in TDMA system/
Output Port The function of the port is take the packets that have been stored in the out put port memory and transmits them over the out going link. The queuing and bu
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Along any transmission path from a given source to a given destination, a group of virtual circuits can be grouped together into what is known as path.
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