Physical Layer - deals with data in the form of bits or signals, Data-Link Layer - performs the physical addressing of data, Network Layer - performs logical addressing(IP addressing) of the data, Transport Layer - performs flow and error control in the data for its proper transmission, Session Layer - helps in setting up, closing and managing the connection in the network, Presentation Layer - performs data translation, encryption & decryption, and compression, Application Layer - provides services for network applications with the help of protocols,

BN20/22 OSI 7 layer model - What does each layer do?

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