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Efficiency of a data communications system depends on three fundamental characteristics
- Delivery: The system should deliver data to the correct destination. Data should be received by the intended device or user and only by that device or user
- Accuracy: The system should deliver the data accurately. Data that have been altered in transmission as well as left uncorrected are unusable
- Timeliness: The system should deliver data in a timely manner. Data delivered not on time are useless. Delivering the data in the similar order that they are produced and without significant delay (real time transmission)
Features of FDM 1.The FDM channel carries only one phone circuit at a time. 2.If an FDM channel is not in sue then it is sits idle and cannot be used by other user
what is parity checking
Normally, we think of communications science as dealing with the contemporaneous exchange of information among distant parties. Though, many of the same techniques employed in data
Round Trip Time (RTT) and Time Out The size and the complexity of computer networks have grown in past years. To achieve an efficient and reliable transmission some
Q. Explain the process of piggybacking? When a data frame arrives in its place of immediately sending a separate control frame and the receiver restrains itself and waits until
Describe the method of static and dynamic routing
Describe different router types in OSPF?
There are basically two functions for creating routing tables, which are as given: Manual entry Software Further there are two types for computing routing table inf
Q. Define layered network model? - The OSI Reference Model is collection of seven layers every specifying particular network functions. - The process of breaking up the func
What is the Frame relay, in which layer it comes? Ans) Frame relay is an industry standard, shared access, switched Data Link Layer encapsulation that services many virtual circ
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