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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 functions or else tasks of networking into layers reduces complexity.
- Every layer provides a service to the layer above it in the protocol specification.
- Every layer communicates with the same layer's software or hardware on other computers.
- The lower 4 layers (network, transport, data link and physical -Layers 3, 4, 2, and 1) are concerned with the flow of data from end to end through the network.
- The upper top four layers of the OSI model (application and presentation and session-Layers 6, 7and 5) are orientated more toward services to the applications.
- Data is encapsulated with the essential protocol information as it moves down the layers before network transit.
Asynchronous or Statistical Time Division Multiplexing As we have seen synchronous TDM does not guarantee that the full capacity of a link in sued. In fact it is more like
Write discussion on Associative mapping - computer architecture.
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Hold-Down Timers - Routers ignore network update information for a number of periods.
Why it is necessary to have layering in a network? A computer network is a very complex system. It becomes very difficult to execute as a single entity. The layered approach di
Explain use of RTP and RTCP Protocol?
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