How two layers excahnge info in layered arch of data communication''?
Answers
The information exchange process occurs between peer OSI layers. Each layer in the source system adds control information to data, and each layer in the destination system analyzes and removes the control information from that data.
Answer:
Layered architecture allows solutions to be built with different components that can interoperate with flexibility of implementation, yet with correctness of operation due to well-defined interfaces between layers. It also provides architectural clarity and separation for different functional blocks in systems, which helps applications to communicate with each other over a variety of protocols, networks, and physical connectivity options. This provides a variety of possible application deployments without requiring top-to-bottom change to the implementation. One can run a system over copper or fiber cable with a change in physical media without requiring a change in . of the protocols above the physical layer.
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