What is the process called that changes data as it flows up and down the layers of the TCP/IP model called, and how does it work?
What will be an ideal response?
It is called encapsulation. Each layer has a different PDU, and each layer below encapsulates the layer above with additional headers (and sometimes footers) and data from above. A packet's payload, for example, can be a TCP segment that consists of data from layers above and a sequence number.
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