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Enterprise and Technical Architecture
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What is exchanged between layers in peer-to-peer communication ?
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A
Protocol data units
💡 Explanation:
In layered architecture, each layer communicates with its peer layer on another device. The data unit exchanged between peer layers is called a Protocol Data Unit (PDU). Different layers have different PDU names - segments at transport layer, packets at network layer, frames at data link layer - but collectively they're all PDUs.