When data travels down the OSI stack from the Application layer to the Physical layer, what is the term for appending specific protocol headers at each sequential layer?

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A Encapsulation
B Decapsulation
C Multiplexing
D Fragmentation

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Answer: A. Encapsulation

• Answer: A
• Explanation: Encapsulation wraps data with control information (headers and trailers) as it moves down through the layers. Decapsulation is the reverse process that occurs at the receiving end when headers are stripped off.

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When data travels down the OSI stack from the Application layer to the Physical layer, what is the term for appending specific protocol headers at each sequential layer?

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